SAFETY DATA SHEET. Active Caspase-3 Substrate N-Ac-DEVD-N'-MC-R110

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Active Caspase-3 Substrate N-Ac-DEVD-N'-MC-R110 Page: 1 of 6 according to Regulation (EC) No. 1907/2006 as amended by (EC) No. 1272/2008 Section 1. Identification of the Substance/Mixture and of the Company/Undertaking 1.1 Product Code: Product Name: 10010208 Active Caspase-3 Substrate N-Ac-DEVD-N'-MC-R110 1.2 Relevant identified uses of the substance or mixture and uses advised against: Relevant identified uses: For research use only, not for human or veterinary use. 1.3 Details of the Supplier of the Safety Data Sheet: Company Name: Web site address: Cayman Chemical Company 1180 E. Ellsworth Rd. Ann Arbor, MI 48108 www.caymanchem.com Information: Cayman Chemical Company +1 (734)971-3335 1.4 Emergency telephone number: Emergency Contact: CHEMTREC Within USA and Canada: +1 (800)424-9300 CHEMTREC Outside USA and Canada: +1 (703)527-3887 Flammable Liquids, Category 4 Skin Corrosion/Irritation, Category 2 Serious Eye Damage/Eye Irritation, Category 2A Section 2. Hazards Identification 2.1 Classification of the Substance or Mixture: 2.1.1 Classification according to Regulation (EC) No 1272/2008 [CLP]: 2.2 Label Elements: 2.2.1 Labeling according to Regulation (EC) No 1272/2008 [CLP]: GHS Signal Word: GHS Hazard Phrases: Warning H227: Combustible liquid. H315: Causes skin irritation. H319: Causes serious eye irritation. GHS Precaution Phrases: P210: Keep away from {heat/sparks/open flames/hot surfaces}. - No smoking. P264: Wash {hands} thoroughly after handling. P280: Wear {protective gloves/protective clothing/eye protection/face protection}. GHS Response Phrases: P302+352: IF ON SKIN: Wash with plenty of soap and water. P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P332+313: If skin irritation occurs, get medical advice/attention. P337+313: If eye irritation persists, get medical advice/attention. P362+364: Take off contaminated clothing and wash it before reuse. GHS Storage and Disposal Phrases: Please refer to Section 7 for Storage and Section 13 for Disposal information.

Active Caspase-3 Substrate N-Ac-DEVD-N'-MC-R110 Page: 2 of 6 2.3 Adverse Human Health Effects and Symptoms: Causes skin and serious eye irritation. DMSO has the potential to carry toxic materials or materials of unknown toxicity into the body. DMSO is readily absorbed through skin. Material may be irritating to the mucous membranes and upper respiratory tract. May be harmful by inhalation, ingestion, or skin absorption. May cause respiratory system irritation. To the best of our knowledge, the toxicological properties have not been thoroughly investigated. Section 3. Composition/Information on Ingredients CAS # / RTECS # 628302-80-7 67-68-5 PV6210000 Hazardous Components (Chemical Name)/ REACH Registration No. Concentration N-Ac-DEVD-N'-MC-R110 1.0-10.0 % EC No./ EC Index No. Dimethyl sulfoxide, anhydrous 90.0-99.0 % 200-664-3 GHS Classification Flam. Liq. 4: H227 Eye Damage 2A: H319 Skin Corr. 2: H315 4.1 4.2 5.1 5.2 5.3 Section 4. First Aid Measures Description of First Aid Measures: In Case of Inhalation: Remove to fresh air. If not breathing, give artificial respiration or give oxygen by trained personnel. Get immediate medical attention. In Case of Skin Contact: Immediately wash skin with soap and plenty of water for at least 15 minutes. Remove contaminated clothing. Get medical attention if symptoms occur. Wash clothing before reuse. In Case of Eye Contact: Hold eyelids apart and flush eyes with plenty of water for at least 15 minutes. Have eyes examined and tested by medical personnel. In Case of Ingestion: Wash out mouth with water provided person is conscious. Never give anything by mouth to an unconscious person. Get medical attention. Do NOT induce vomiting unless directed to do so by medical personnel. Important Symptoms and Exposure may cause: hematuria or shortness of breath (dyspnea). Effects, Both Acute and Exposure may cause: gastrointestinal irritation with nausea, vomiting, diarrhea, headache, Delayed: dizziness, and drowsiness. Eye contact may cause blurry vision, burning sensation, redness, tearing, and vasodilation. Section 5. Fire Fighting Measures Suitable Extinguishing Media: Use alcohol-resistant foam, carbon dioxide, water, or dry chemical spray. Use water spray to cool fire-exposed containers. Unsuitable Extinguishing A solid water stream may be inefficient. Media: Flammable Properties andcan release vapors that form explosive mixtures at temperatures at or above the flashpoint. Hazards: Container explosion may occur under fire conditions. Emits toxic fumes under fire conditions. Sensitive to static discharge. Flash Pt: 89.00 C Method Used: Closed Cup Explosive Limits: LEL: 3.5% at 25.0 C UEL: 42.0% at 25.0 C Autoignition Pt: 215.00 C Fire Fighting Instructions: As in any fire, wear self-contained breathing apparatus pressure-demand (NIOSH approved or equivalent), and full protective gear to prevent contact with skin and eyes.

6.1 6.2 6.3 Active Caspase-3 Substrate N-Ac-DEVD-N'-MC-R110 Note: Combustible as diluted in dimethyl sulfoxide Section 6. Accidental Release Measures Page: 3 of 6 Protective Precautions, Avoid breathing vapors and provide adequate ventilation. Protective Equipment and As conditions warrant, wear a NIOSH approved self-contained breathing apparatus, or respirator, Emergency Procedures: and appropriate personal protection (rubber boots, safety goggles, and heavy rubber gloves). Environmental Take steps to avoid release into the environment, if safe to do so. Precautions: Methods and Material For Contain spill and collect, as appropriate. Containment and CleaningTransfer to a chemical waste container for disposal in accordance with local regulations. Up: 7.1 7.2 Precautions To Be Taken in Handling: Precautions To Be Taken in Storing: Other Precautions: Section 7. Handling and Storage Avoid breathing dust/fume/gas/mist/vapours/spray. Avoid prolonged or repeated exposure. Keep away from sources of ignition. Take precautionary measures against static discharge. Keep away from heat, sparks and flame. Keep container tightly closed. Store in accordance with information listed on the product insert. Hygroscopic. Section 8. Exposure Controls/Personal Protection 8.1 Exposure Parameters: CAS # Partial Chemical Name Britain EH40 France VL Europe 628302-80-7 N-Ac-DEVD-N'-MC-R110 67-68-5 Dimethyl sulfoxide, anhydrous CAS # Partial Chemical Name OSHA TWA ACGIH TWA Other Limits 628302-80-7 N-Ac-DEVD-N'-MC-R110 67-68-5 Dimethyl sulfoxide, anhydrous 8.2 Exposure Controls: 8.2.1 Engineering Controls (Ventilation etc.): Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels below recommended exposure limits. 8.2.2 Personal protection equipment: Eye Protection: Safety glasses Protective Gloves: Compatible chemical-resistant gloves Other Protective Clothing:Lab coat Respiratory Equipment NIOSH approved respirator, as conditions warrant. (Specify Type): Work/Hygienic/Maintenan Do not take internally. ce Practices: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Wash thoroughly after handling.

Active Caspase-3 Substrate N-Ac-DEVD-N'-MC-R110 Section 9. Physical and Chemical Properties 9.1 Information on Basic Physical and Chemical Properties Physical States: [ ] Gas [ X ] Liquid [ ] Solid Page: 4 of 6 Appearance and Odor: Melting Point: Boiling Point: Solution Flash Pt: 89.00 C Method Used: Closed Cup Evaporation Rate: Flammability (solid, gas): Explosive Limits: LEL: 3.5% at 25.0 C UEL: 42.0% at 25.0 C Vapor Pressure (vs. Air or mm 0.37 MM_HG at 20.0 C Hg): Vapor Density (vs. Air = 1): Specific Gravity (Water = 1): Solubility in Water: Autoignition Pt: 215.00 C 9.2 Other Information Percent Volatile: 10.1 10.2 10.3 10.4 Reactivity: Stability: Stability Note(s): Polymerization: Conditions To Avoid: Section 10. Stability and Reactivity Unstable [ ] Stable [ X ] Stable if stored in accordance with information listed on the product insert. Will occur [ ] Will not occur [ X ] heat, flames and sparks 10.5 Incompatibility - Materials acid chlorides To Avoid: phosphorus halides strong acids alkali metals strong oxidizing agents strong reducing agents 10.6 Hazardous Decomposition or Byproducts: carbon monoxide carbon dioxide sulfur oxides

Active Caspase-3 Substrate N-Ac-DEVD-N'-MC-R110 Section 11. Toxicological Information Page: 5 of 6 11.1 Information on Toxicological Effects: Chronic Toxicological Effects: The toxicological effects of this product have not been thoroughly studied. DMSO - Toxicity Data: Oral LD50 (rat): 14,500 mg/kg; Skin LD50 (rat): 40,000 mg/kg; Oral LD50 (mouse): 7,920 mg/kg; Skin LD50 (mouse): 50,000 mg/kg; Skin TDLO (woman): 1,800 mg/kg; Inhalation LC50 (rat): >1,600 mg/m3 (4h); DMSO - Irritation Data: Eyes (rabbit): 100 mg mild; Skin (rabbit): 500 mg (24h) mild; DMSO - Investigated as a mutagen, reproductive effector, and tumorigen. Only select Registry of Toxic Effects of Chemical Substances (RTECS) data is presented here. See actual entry in RTECS for complete information. DMSO RTECS Number: PV6210000 Carcinogenicity: NTP? No IARC Monographs? No OSHA Regulated? No CAS # Hazardous Components (Chemical Name) NTP IARC ACGIH OSHA 628302-80-7 N-Ac-DEVD-N'-MC-R110 n.a. n.a. n.a. n.a. 67-68-5 Dimethyl sulfoxide, anhydrous n.a. n.a. n.a. n.a. Section 12. Ecological Information 12.1 12.2 12.3 12.4 12.5 Toxicity: Persistence and Degradability: Bioaccumulative Potential: Mobility in Soil: Results of PBT and vpvb assessment: Avoid release into the environment. Runoff from fire control or dilution water may cause pollution. 12.6 Other adverse effects: Section 13. Disposal Considerations 13.1 Waste Disposal Method: Dispose in accordance with local, state, and federal regulations. 14.1 LAND TRANSPORT (US DOT): Section 14. Transport Information DOT Proper Shipping Name: Not dangerous goods. DOT Hazard Class: UN/ Number: 14.1 LAND TRANSPORT (European ADR/RID): ADR/RID Shipping Name: Not dangerous goods. UN Number: Hazard Class: 14.3 AIR TRANSPORT (ICAO/IATA): ICAO/IATA Shipping Name: Additional Transport Not dangerous goods. Transport in accordance with local, state, and federal regulations. Information:

CAS # Active Caspase-3 Substrate N-Ac-DEVD-N'-MC-R110 Section 15. Regulatory Information EPA SARA (Superfund Amendments and Reauthorization Act of 1986) Lists Hazardous Components (Chemical Name) Page: 6 of 6 S. 302 (EHS) S. 304 RQ S. 313 (TRI) 628302-80-7 N-Ac-DEVD-N'-MC-R110 No No No 67-68-5 Dimethyl sulfoxide, anhydrous No No No CAS # Hazardous Components (Chemical Name) Other US EPA or State Lists 628302-80-7 N-Ac-DEVD-N'-MC-R110 CAA HAP,ODC: No; CWA NPDES: No; TSCA: No; CA PROP.65: No 67-68-5 Dimethyl sulfoxide, anhydrous CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - Regulatory Information Statement: Revision Date: Additional Information About This Product: Company Policy or Disclaimer: This SDS was prepared in accordance with 29 CFR 1910.1200 and Regulation (EC) No.1272/2008. Section 16. Other Information 05/08/2015 DISCLAIMER: This information is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes.

Active Caspase-3 Standard Page: 1 of 6 according to Regulation (EC) No. 1907/2006 as amended by (EC) No. 1272/2008 Section 1. Identification of the Substance/Mixture and of the Company/Undertaking 1.1 Product Code: Product Name: 10010209 Active Caspase-3 Standard 1.2 Relevant identified uses of the substance or mixture and uses advised against: Relevant identified uses: For research use only, not for human or veterinary use. 1.3 Details of the Supplier of the Safety Data Sheet: Company Name: Web site address: Cayman Chemical Company 1180 E. Ellsworth Rd. Ann Arbor, MI 48108 www.caymanchem.com Information: Cayman Chemical Company +1 (734)971-3335 1.4 Emergency telephone number: Emergency Contact: CHEMTREC Within USA and Canada: +1 (800)424-9300 CHEMTREC Outside USA and Canada: +1 (703)527-3887 Acute Toxicity: Oral, Category 4 Skin Corrosion/Irritation, Category 2 Serious Eye Damage/Eye Irritation, Category 2 Section 2. Hazards Identification 2.1 Classification of the Substance or Mixture: 2.1.1 Classification according to Regulation (EC) No 1272/2008 [CLP]: 2.2 Label Elements: 2.2.1 Labeling according to Regulation (EC) No 1272/2008 [CLP]: GHS Signal Word: GHS Hazard Phrases: Warning H302: Harmful if swallowed. H315: Causes skin irritation. H319: Causes serious eye irritation. GHS Precaution Phrases: P264: Wash {hands} thoroughly after handling. P280: Wear {protective gloves/protective clothing/eye protection/face protection}. GHS Response Phrases: P301+312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. P302+352: IF ON SKIN: Wash with plenty of soap and water. P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P330: Rinse mouth. P332+313: If skin irritation occurs, get medical advice/attention. P337+313: If eye irritation persists, get medical advice/attention. P362+364: Take off contaminated clothing and wash it before reuse. GHS Storage and Disposal Phrases:

Active Caspase-3 Standard Please refer to Section 7 for Storage and Section 13 for Disposal information. Page: 2 of 6 2.3 Adverse Human Health Effects and Symptoms: Causes skin and serious eye irritation. Material may be irritating to the mucous membranes and upper respiratory tract. May be harmful by inhalation, ingestion, or skin absorption. May cause respiratory system irritation. To the best of our knowledge, the toxicological properties have not been thoroughly investigated. Section 3. Composition/Information on Ingredients CAS # / RTECS # Hazardous Components (Chemical Name)/ REACH Registration No. Concentration EC No./ EC Index No. GHS Classification 3483-12-3 EK1610000 7647-14-5 VZ4725000 7447-40-7 TS8050000 7558-79-4 WC4500000 7778-77-0 TC6615500 7732-18-5 ZC0110000 DL-Dithiothreitol 15.425 % 222-468-7 Active human caspase-3 0.617 % Sodium chloride 1.0 % 231-598-3 Potassium chloride 0.025 % 231-211-8 Sodium phosphate, Dibasic 0.18 % 231-448-7 Potassium phosphate, Monobasic 0.03 % 231-913-4 Water 82.723 % 231-791-2 Acute Tox.(O) 4: H302 Skin Corr. 2: H315 Eye Damage 2A: H319 STOT (SE) 3: H335 H336 Acute Tox.(O) 5: H303 Aquatic (A) 3: H402 Eye Damage 2: H319 Section 4. First Aid Measures 4.1 Description of First Aid Measures: In Case of Inhalation: In Case of Skin Contact: In Case of Eye Contact: In Case of Ingestion: Remove to fresh air. If not breathing, give artificial respiration or give oxygen by trained personnel. Get immediate medical attention. Immediately wash skin with soap and plenty of water for at least 15 minutes. Remove contaminated clothing. Get medical attention if symptoms occur. Wash clothing before reuse. Hold eyelids apart and flush eyes with plenty of water for at least 15 minutes. Have eyes examined and tested by medical personnel. Wash out mouth with water provided person is conscious. Never give anything by mouth to an unconscious person. Get medical attention. Do NOT induce vomiting unless directed to do so by medical personnel.

Active Caspase-3 Standard Page: 3 of 6 5.1 Suitable Extinguishing Media: Unsuitable Extinguishing Media: Section 5. Fire Fighting Measures Use alcohol-resistant foam, carbon dioxide, water, or dry chemical spray. Use water spray to cool fire-exposed containers. A solid water stream may be inefficient. 5.2 Flammable Properties and Hazards: Flash Pt: Explosive Limits: LEL: UEL: Autoignition Pt: 5.3 Fire Fighting Instructions: As in any fire, wear self-contained breathing apparatus pressure-demand (NIOSH approved or equivalent), and full protective gear to prevent contact with skin and eyes. Section 6. Accidental Release Measures 6.1 Protective Precautions, Avoid breathing vapors and provide adequate ventilation. Protective Equipment and As conditions warrant, wear a NIOSH approved self-contained breathing apparatus, or respirator, Emergency Procedures: and appropriate personal protection (rubber boots, safety goggles, and heavy rubber gloves). 6.2 Environmental Precautions: Take steps to avoid release into the environment, if safe to do so. 6.3 Methods and Material For Contain spill and collect, as appropriate. Containment and CleaningTransfer to a chemical waste container for disposal in accordance with local regulations. Up: 7.1 7.2 Precautions To Be Taken in Handling: Precautions To Be Taken in Storing: Section 7. Handling and Storage Avoid breathing dust/fume/gas/mist/vapours/spray. Avoid prolonged or repeated exposure. Keep container tightly closed. Store in accordance with information listed on the product insert. Section 8. Exposure Controls/Personal Protection 8.1 Exposure Parameters: CAS # Partial Chemical Name Britain EH40 France VL Europe 3483-12-3 DL-Dithiothreitol Active human caspase-3 7647-14-5 Sodium chloride 7447-40-7 Potassium chloride 7558-79-4 Sodium phosphate, Dibasic 7778-77-0 Potassium phosphate, Monobasic 7732-18-5 Water CAS # Partial Chemical Name OSHA TWA ACGIH TWA Other Limits 3483-12-3 DL-Dithiothreitol Active human caspase-3 7647-14-5 Sodium chloride 7447-40-7 Potassium chloride 7558-79-4 Sodium phosphate, Dibasic 7778-77-0 Potassium phosphate, Monobasic

Active Caspase-3 Standard Page: 4 of 6 7732-18-5 Water 8.2 Exposure Controls: 8.2.1 Engineering Controls (Ventilation etc.): Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels below recommended exposure limits. 8.2.2 Personal protection equipment: Eye Protection: Protective Gloves: Safety glasses Compatible chemical-resistant gloves Other Protective Clothing:Lab coat Respiratory Equipment NIOSH approved respirator, as conditions warrant. (Specify Type): Work/Hygienic/Maintenan Do not take internally. ce Practices: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Wash thoroughly after handling. Section 9. Physical and Chemical Properties 9.1 Information on Basic Physical and Chemical Properties Physical States: [ ] Gas [ X ] Liquid [ ] Solid Appearance and Odor: Solution ph: 7.4 Melting Point: Boiling Point: Flash Pt: Evaporation Rate: Flammability (solid, gas): Explosive Limits: LEL: UEL: Vapor Pressure (vs. Air or mm Hg): Vapor Density (vs. Air = 1): Specific Gravity (Water = 1): Solubility in Water: Autoignition Pt: 9.2 Other Information Percent Volatile: 10.1 10.2 10.3 10.4 Reactivity: Stability: Stability Note(s): Polymerization: Conditions To Avoid: Section 10. Stability and Reactivity Unstable [ ] Stable [ X ] Stable if stored in accordance with information listed on the product insert. Will occur [ ] Will not occur [ X ] 10.5 Incompatibility - Materials alkali metals To Avoid: bases oxidizing agents reducing agents 10.6 Hazardous Decomposition or carbon dioxide carbon monoxide

Byproducts: hydrogen sulfide gas sulfur oxides Active Caspase-3 Standard Section 11. Toxicological Information Page: 5 of 6 11.1 Information on Toxicological Effects: Chronic Toxicological Effects: The toxicological effects of this compound have not been thoroughly studied. DL-Dithiothreitol - Toxicity Data: Intraperitoneal LD50 (mouse): 154 mg/kg; Only select Registry of Toxic Effects of Chemical Substances (RTECS) data is presented here. See actual entry in RTECS for complete information. DL-Dithiothreitol RTECS Number: EK1610000 Carcinogenicity: NTP? No IARC Monographs? No OSHA Regulated? No CAS # Hazardous Components (Chemical Name) NTP IARC ACGIH OSHA 3483-12-3 DL-Dithiothreitol n.a. n.a. n.a. n.a. Active human caspase-3 n.a. n.a. n.a. n.a. 7647-14-5 Sodium chloride n.a. n.a. n.a. n.a. 7447-40-7 Potassium chloride n.a. n.a. n.a. n.a. 7558-79-4 Sodium phosphate, Dibasic n.a. n.a. n.a. n.a. 7778-77-0 Potassium phosphate, Monobasic n.a. n.a. n.a. n.a. 7732-18-5 Water n.a. n.a. n.a. n.a. Section 12. Ecological Information 12.1 12.2 12.3 12.4 12.5 Toxicity: Persistence and Degradability: Bioaccumulative Potential: Mobility in Soil: Results of PBT and vpvb assessment: Avoid release into the environment. Runoff from fire control or dilution water may cause pollution. 12.6 Other adverse effects: Section 13. Disposal Considerations 13.1 Waste Disposal Method: Dispose in accordance with local, state, and federal regulations. 14.1 LAND TRANSPORT (US DOT): Section 14. Transport Information DOT Proper Shipping Name: Not dangerous goods. DOT Hazard Class: UN/ Number: 14.1 LAND TRANSPORT (European ADR/RID): ADR/RID Shipping Name: Not dangerous goods. UN Number: Hazard Class:

Active Caspase-3 Standard Page: 6 of 6 14.3 AIR TRANSPORT (ICAO/IATA): ICAO/IATA Shipping Name: Additional Transport Not dangerous goods. Transport in accordance with local, state, and federal regulations. Information: Section 15. Regulatory Information EPA SARA (Superfund Amendments and Reauthorization Act of 1986) Lists CAS # Hazardous Components (Chemical Name) S. 302 (EHS) S. 304 RQ S. 313 (TRI) 3483-12-3 DL-Dithiothreitol No No No Active human caspase-3 No No No 7647-14-5 Sodium chloride No No No 7447-40-7 Potassium chloride No No No 7558-79-4 Sodium phosphate, Dibasic No Yes 5000 LB No 7778-77-0 Potassium phosphate, Monobasic No No No 7732-18-5 Water No No No CAS # Hazardous Components (Chemical Name) Other US EPA or State Lists 3483-12-3 DL-Dithiothreitol CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - Active human caspase-3 CAA HAP,ODC: No; CWA NPDES: No; TSCA: No; CA PROP.65: No 7647-14-5 Sodium chloride CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - 7447-40-7 Potassium chloride CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - 7558-79-4 Sodium phosphate, Dibasic CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - 7778-77-0 Potassium phosphate, Monobasic CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - 7732-18-5 Water CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - Regulatory Information Statement: This SDS was prepared in accordance with 29 CFR 1910.1200 and Regulation (EC) No.1272/2008. Section 16. Other Information Revision Date: Additional Information About 05/08/2015 This Product: Company Policy or Disclaimer: DISCLAIMER: This information is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes.

Caspase-3 Inhibitor N-Ac-Asp-Glu-Val-Asp-CHO according to Regulation (EC) No. 1907/2006 as amended by (EC) No. 1272/2008 Section 1. Identification of the Substance/Mixture and of the Company/Undertaking Page: 1 of 6 1.1 Product Code: Product Name: 10010210 Caspase-3 Inhibitor N-Ac-Asp-Glu-Val-Asp-CHO 1.2 Relevant identified uses of the substance or mixture and uses advised against: Relevant identified uses: For research use only, not for human or veterinary use. 1.3 Details of the Supplier of the Safety Data Sheet: Company Name: Web site address: Cayman Chemical Company 1180 E. Ellsworth Rd. Ann Arbor, MI 48108 www.caymanchem.com Information: Cayman Chemical Company +1 (734)971-3335 1.4 Emergency telephone number: Emergency Contact: CHEMTREC Within USA and Canada: +1 (800)424-9300 CHEMTREC Outside USA and Canada: +1 (703)527-3887 Flammable Liquids, Category 4 Skin Corrosion/Irritation, Category 2 Serious Eye Damage/Eye Irritation, Category 2A Section 2. Hazards Identification 2.1 Classification of the Substance or Mixture: 2.1.1 Classification according to Regulation (EC) No 1272/2008 [CLP]: 2.2 Label Elements: 2.2.1 Labeling according to Regulation (EC) No 1272/2008 [CLP]: GHS Signal Word: GHS Hazard Phrases: Warning H227: Combustible liquid. H315: Causes skin irritation. H319: Causes serious eye irritation. GHS Precaution Phrases: P210: Keep away from {heat/sparks/open flames/hot surfaces}. - No smoking. P264: Wash {hands} thoroughly after handling. P280: Wear {protective gloves/protective clothing/eye protection/face protection}. GHS Response Phrases: P302+352: IF ON SKIN: Wash with plenty of soap and water. P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P332+313: If skin irritation occurs, get medical advice/attention. P337+313: If eye irritation persists, get medical advice/attention. P362+364: Take off contaminated clothing and wash it before reuse. GHS Storage and Disposal Phrases: Please refer to Section 7 for Storage and Section 13 for Disposal information.

Caspase-3 Inhibitor N-Ac-Asp-Glu-Val-Asp-CHO Page: 2 of 6 2.3 Adverse Human Health Effects and Symptoms: Causes skin and serious eye irritation. DMSO has the potential to carry toxic materials or materials of unknown toxicity into the body. DMSO is readily absorbed through skin. Material may be irritating to the mucous membranes and upper respiratory tract. May be harmful by inhalation, ingestion, or skin absorption. May cause respiratory system irritation. To the best of our knowledge, the toxicological properties have not been thoroughly investigated. Section 3. Composition/Information on Ingredients CAS # / RTECS # Hazardous Components (Chemical Name)/ REACH Registration No. Concentration EC No./ EC Index No. GHS Classification 184179-08-6 67-68-5 PV6210000 N-Ac-Asp-Glu-Val-Asp-CHO 0.0-5.0 % Dimethyl sulfoxide, anhydrous 95.0-100.0 % 200-664-3 Flam. Liq. 4: H227 Eye Damage 2A: H319 Skin Corr. 2: H315 Section 4. First Aid Measures 4.1 Description of First Aid Measures: In Case of Inhalation: In Case of Skin Contact: In Case of Eye Contact: In Case of Ingestion: Remove to fresh air. If not breathing, give artificial respiration or give oxygen by trained personnel. Get immediate medical attention. Immediately wash skin with soap and plenty of water for at least 15 minutes. Remove contaminated clothing. Get medical attention if symptoms occur. Wash clothing before reuse. Hold eyelids apart and flush eyes with plenty of water for at least 15 minutes. Have eyes examined and tested by medical personnel. Wash out mouth with water provided person is conscious. Never give anything by mouth to an unconscious person. Get medical attention. Do NOT induce vomiting unless directed to do so by medical personnel. 4.2 Important Symptoms and Exposure may cause: hematuria or shortness of breath (dyspnea). Effects, Both Acute and Exposure may cause: gastrointestinal irritation with nausea, vomiting, diarrhea, headache, Delayed: dizziness, and drowsiness. Eye contact may cause blurry vision, burning sensation, redness, tearing, and vasodilation. 5.1 Suitable Extinguishing Media: Unsuitable Extinguishing Media: Section 5. Fire Fighting Measures Use alcohol-resistant foam, carbon dioxide, water, or dry chemical spray. Use water spray to cool fire-exposed containers. A solid water stream may be inefficient. 5.2 Flammable Properties andcan release vapors that form explosive mixtures at temperatures at or above the flashpoint. Hazards: Container explosion may occur under fire conditions. Emits toxic fumes under fire conditions. Sensitive to static discharge. Flash Pt: 89.00 C Method Used: Closed Cup Explosive Limits: LEL: 3.5% at 25.0 C UEL: 42.0% at 25.0 C Autoignition Pt: 215.00 C 5.3 Fire Fighting Instructions: As in any fire, wear self-contained breathing apparatus pressure-demand (NIOSH approved or equivalent), and full protective gear to prevent contact with skin and eyes.

Caspase-3 Inhibitor N-Ac-Asp-Glu-Val-Asp-CHO Note: Combustible as diluted in dimethyl sulfoxide Section 6. Accidental Release Measures Page: 3 of 6 6.1 Protective Precautions, Avoid breathing vapors and provide adequate ventilation. Protective Equipment and As conditions warrant, wear a NIOSH approved self-contained breathing apparatus, or respirator, Emergency Procedures: and appropriate personal protection (rubber boots, safety goggles, and heavy rubber gloves). 6.2 Environmental Precautions: Take steps to avoid release into the environment, if safe to do so. 6.3 Methods and Material For Contain spill and collect, as appropriate. Containment and CleaningTransfer to a chemical waste container for disposal in accordance with local regulations. Up: 7.1 7.2 Precautions To Be Taken in Handling: Precautions To Be Taken in Storing: Other Precautions: Section 7. Handling and Storage Avoid breathing dust/fume/gas/mist/vapours/spray. Avoid prolonged or repeated exposure. Keep away from sources of ignition. Take precautionary measures against static discharge. Keep away from heat, sparks and flame. Keep container tightly closed. Store in accordance with information listed on the product insert. Hygroscopic. Section 8. Exposure Controls/Personal Protection 8.1 Exposure Parameters: CAS # Partial Chemical Name Britain EH40 France VL Europe 184179-08-6 N-Ac-Asp-Glu-Val-Asp-CHO 67-68-5 Dimethyl sulfoxide, anhydrous CAS # Partial Chemical Name OSHA TWA ACGIH TWA Other Limits 184179-08-6 N-Ac-Asp-Glu-Val-Asp-CHO 67-68-5 Dimethyl sulfoxide, anhydrous 8.2 Exposure Controls: 8.2.1 Engineering Controls (Ventilation etc.): Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels below recommended exposure limits. 8.2.2 Personal protection equipment: Eye Protection: Protective Gloves: Safety glasses Compatible chemical-resistant gloves Other Protective Clothing:Lab coat Respiratory Equipment NIOSH approved respirator, as conditions warrant. (Specify Type): Work/Hygienic/Maintenan Do not take internally. ce Practices: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Wash thoroughly after handling.

Caspase-3 Inhibitor N-Ac-Asp-Glu-Val-Asp-CHO Section 9. Physical and Chemical Properties 9.1 Information on Basic Physical and Chemical Properties Physical States: [ ] Gas [ X ] Liquid [ ] Solid Page: 4 of 6 Appearance and Odor: Melting Point: Boiling Point: Solution Flash Pt: 89.00 C Method Used: Closed Cup Evaporation Rate: Flammability (solid, gas): Explosive Limits: LEL: 3.5% at 25.0 C UEL: 42.0% at 25.0 C Vapor Pressure (vs. Air or mm 0.37 MM_HG at 20.0 C Hg): Vapor Density (vs. Air = 1): Specific Gravity (Water = 1): Solubility in Water: Autoignition Pt: 215.00 C 9.2 Other Information Percent Volatile: 10.1 10.2 10.3 10.4 Reactivity: Stability: Stability Note(s): Polymerization: Conditions To Avoid: Section 10. Stability and Reactivity Unstable [ ] Stable [ X ] Stable if stored in accordance with information listed on the product insert. Will occur [ ] Will not occur [ X ] heat, flames and sparks 10.5 Incompatibility - Materials acid chlorides To Avoid: phosphorus halides strong acids alkali metals strong oxidizing agents strong reducing agents 10.6 Hazardous Decomposition or Byproducts: carbon monoxide carbon dioxide sulfur oxides

11.1 Information on Toxicological Effects: Chronic Toxicological Effects: Caspase-3 Inhibitor N-Ac-Asp-Glu-Val-Asp-CHO Section 11. Toxicological Information Page: 5 of 6 The toxicological effects of this product have not been thoroughly studied. DMSO - Toxicity Data: Oral LD50 (rat): 14,500 mg/kg; Skin LD50 (rat): 40,000 mg/kg; Oral LD50 (mouse): 7,920 mg/kg; Skin LD50 (mouse): 50,000 mg/kg; Skin TDLO (woman): 1,800 mg/kg; Inhalation LC50 (rat): >1,600 mg/m3 (4h); DMSO - Irritation Data: Eyes (rabbit): 100 mg mild; Skin (rabbit): 500 mg (24h) mild; DMSO - Investigated as a mutagen, reproductive effector, and tumorigen. Only select Registry of Toxic Effects of Chemical Substances (RTECS) data is presented here. See actual entry in RTECS for complete information. DMSO RTECS Number: PV6210000 Carcinogenicity: NTP? No IARC Monographs? No OSHA Regulated? No CAS # Hazardous Components (Chemical Name) NTP IARC ACGIH OSHA 184179-08-6 N-Ac-Asp-Glu-Val-Asp-CHO n.a. n.a. n.a. n.a. 67-68-5 Dimethyl sulfoxide, anhydrous n.a. n.a. n.a. n.a. Section 12. Ecological Information 12.1 12.2 12.3 12.4 12.5 Toxicity: Persistence and Degradability: Bioaccumulative Potential: Mobility in Soil: Results of PBT and vpvb assessment: Avoid release into the environment. Runoff from fire control or dilution water may cause pollution. 12.6 Other adverse effects: Section 13. Disposal Considerations 13.1 Waste Disposal Method: Dispose in accordance with local, state, and federal regulations. 14.1 LAND TRANSPORT (US DOT): Section 14. Transport Information DOT Proper Shipping Name: Not dangerous goods. DOT Hazard Class: UN/ Number: 14.1 LAND TRANSPORT (European ADR/RID): ADR/RID Shipping Name: Not dangerous goods. UN Number: Hazard Class: 14.3 AIR TRANSPORT (ICAO/IATA): ICAO/IATA Shipping Name: Additional Transport Not dangerous goods. Transport in accordance with local, state, and federal regulations. Information:

Caspase-3 Inhibitor N-Ac-Asp-Glu-Val-Asp-CHO Section 15. Regulatory Information EPA SARA (Superfund Amendments and Reauthorization Act of 1986) Lists Page: 6 of 6 CAS # Hazardous Components (Chemical Name) S. 302 (EHS) S. 304 RQ S. 313 (TRI) 184179-08-6 N-Ac-Asp-Glu-Val-Asp-CHO No No No 67-68-5 Dimethyl sulfoxide, anhydrous No No No CAS # Hazardous Components (Chemical Name) Other US EPA or State Lists 184179-08-6 N-Ac-Asp-Glu-Val-Asp-CHO CAA HAP,ODC: No; CWA NPDES: No; TSCA: No; CA PROP.65: No 67-68-5 Dimethyl sulfoxide, anhydrous CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - Regulatory Information Statement: This SDS was prepared in accordance with 29 CFR 1910.1200 and Regulation (EC) No.1272/2008. Section 16. Other Information Revision Date: Additional Information About 05/08/2015 This Product: Company Policy or Disclaimer: DISCLAIMER: This information is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes.

Caspase-3 Dithiothreitol (1M) Page: 1 of 6 according to Regulation (EC) No. 1907/2006 as amended by (EC) No. 1272/2008 Section 1. Identification of the Substance/Mixture and of the Company/Undertaking 1.1 Product Code: Product Name: Synonyms: 10010212 Caspase-3 Dithiothreitol (1M) Caspase-3 DTT (1M); 1.2 Relevant identified uses of the substance or mixture and uses advised against: Relevant identified uses: For research use only, not for human or veterinary use. 1.3 Details of the Supplier of the Safety Data Sheet: Company Name: Web site address: Cayman Chemical Company 1180 E. Ellsworth Rd. Ann Arbor, MI 48108 www.caymanchem.com Information: Cayman Chemical Company +1 (734)971-3335 1.4 Emergency telephone number: Emergency Contact: CHEMTREC Within USA and Canada: +1 (800)424-9300 CHEMTREC Outside USA and Canada: +1 (703)527-3887 Acute Toxicity: Oral, Category 4 Skin Corrosion/Irritation, Category 2 Serious Eye Damage/Eye Irritation, Category 2 Section 2. Hazards Identification 2.1 Classification of the Substance or Mixture: 2.1.1 Classification according to Regulation (EC) No 1272/2008 [CLP]: 2.2 Label Elements: 2.2.1 Labeling according to Regulation (EC) No 1272/2008 [CLP]: GHS Signal Word: GHS Hazard Phrases: Warning H302: Harmful if swallowed. H315: Causes skin irritation. H319: Causes serious eye irritation. GHS Precaution Phrases: P264: Wash {hands} thoroughly after handling. P280: Wear {protective gloves/protective clothing/eye protection/face protection}. GHS Response Phrases: P301+312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. P302+352: IF ON SKIN: Wash with plenty of soap and water. P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P330: Rinse mouth. P332+313: If skin irritation occurs, get medical advice/attention. P337+313: If eye irritation persists, get medical advice/attention. P362+364: Take off contaminated clothing and wash it before reuse.

Caspase-3 Dithiothreitol (1M) Page: 2 of 6 GHS Storage and Disposal Phrases: Please refer to Section 7 for Storage and Section 13 for Disposal information. 2.3 Adverse Human Health Effects and Symptoms: Causes skin and serious eye irritation. Harmful if swallowed. Material may be irritating to the mucous membranes and upper respiratory tract. May be harmful by inhalation or skin absorption. May cause respiratory system irritation. To the best of our knowledge, the toxicological properties have not been thoroughly investigated. Section 3. Composition/Information on Ingredients CAS # / RTECS # Hazardous Components (Chemical Name)/ REACH Registration No. Concentration EC No./ EC Index No. GHS Classification 3483-12-3 EK1610000 7647-14-5 VZ4725000 7447-40-7 TS8050000 7558-79-4 WC4500000 7778-77-0 TC6615500 7732-18-5 ZC0110000 DL-Dithiothreitol 15.425 % 222-468-7 Sodium chloride 1.0 % 231-598-3 Potassium chloride 0.025 % 231-211-8 Sodium phosphate, Dibasic 0.18 % 231-448-7 Potassium phosphate, Monobasic 0.03 % 231-913-4 Water 83.34 % 231-791-2 Acute Tox.(O) 4: H302 Skin Corr. 2: H315 Eye Damage 2A: H319 STOT (SE) 3: H335 H336 Acute Tox.(O) 5: H303 Aquatic (A) 3: H402 Eye Damage 2: H319 Section 4. First Aid Measures 4.1 Description of First Aid Measures: In Case of Inhalation: In Case of Skin Contact: In Case of Eye Contact: In Case of Ingestion: Remove to fresh air. If not breathing, give artificial respiration or give oxygen by trained personnel. Get immediate medical attention. Immediately wash skin with soap and plenty of water for at least 15 minutes. Remove contaminated clothing. Get medical attention if symptoms occur. Wash clothing before reuse. Hold eyelids apart and flush eyes with plenty of water for at least 15 minutes. Have eyes examined and tested by medical personnel. Wash out mouth with water provided person is conscious. Never give anything by mouth to an unconscious person. Get medical attention. Do NOT induce vomiting unless directed to do so by medical personnel.

Caspase-3 Dithiothreitol (1M) Page: 3 of 6 5.1 Suitable Extinguishing Media: Unsuitable Extinguishing Media: Section 5. Fire Fighting Measures Use alcohol-resistant foam, carbon dioxide, water, or dry chemical spray. Use water spray to cool fire-exposed containers. A solid water stream may be inefficient. 5.2 Flammable Properties and Hazards: Flash Pt: Explosive Limits: LEL: UEL: Autoignition Pt: 5.3 Fire Fighting Instructions: As in any fire, wear self-contained breathing apparatus pressure-demand (NIOSH approved or equivalent), and full protective gear to prevent contact with skin and eyes. Section 6. Accidental Release Measures 6.1 Protective Precautions, Avoid breathing vapors and provide adequate ventilation. Protective Equipment and As conditions warrant, wear a NIOSH approved self-contained breathing apparatus, or respirator, Emergency Procedures: and appropriate personal protection (rubber boots, safety goggles, and heavy rubber gloves). 6.2 Environmental Precautions: Take steps to avoid release into the environment, if safe to do so. 6.3 Methods and Material For Contain spill and collect, as appropriate. Containment and CleaningTransfer to a chemical waste container for disposal in accordance with local regulations. Up: 7.1 7.2 Precautions To Be Taken in Handling: Precautions To Be Taken in Storing: Other Precautions: Section 7. Handling and Storage Avoid breathing dust/fume/gas/mist/vapours/spray. Avoid prolonged or repeated exposure. Keep container tightly closed. Store in accordance with information listed on the product insert. Hygroscopic. Section 8. Exposure Controls/Personal Protection 8.1 Exposure Parameters: CAS # Partial Chemical Name Britain EH40 France VL Europe 3483-12-3 DL-Dithiothreitol 7647-14-5 Sodium chloride 7447-40-7 Potassium chloride 7558-79-4 Sodium phosphate, Dibasic 7778-77-0 Potassium phosphate, Monobasic 7732-18-5 Water CAS # Partial Chemical Name OSHA TWA ACGIH TWA Other Limits 3483-12-3 DL-Dithiothreitol 7647-14-5 Sodium chloride 7447-40-7 Potassium chloride 7558-79-4 Sodium phosphate, Dibasic 7778-77-0 Potassium phosphate, Monobasic 7732-18-5 Water

8.2 Exposure Controls: Caspase-3 Dithiothreitol (1M) Page: 4 of 6 8.2.1 Engineering Controls (Ventilation etc.): Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels below recommended exposure limits. 8.2.2 Personal protection equipment: Eye Protection: Protective Gloves: Safety glasses Compatible chemical-resistant gloves Other Protective Clothing:Lab coat Respiratory Equipment NIOSH approved respirator, as conditions warrant. (Specify Type): Work/Hygienic/Maintenan Do not take internally. ce Practices: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Wash thoroughly after handling. Section 9. Physical and Chemical Properties 9.1 Information on Basic Physical and Chemical Properties Physical States: [ ] Gas [ X ] Liquid [ ] Solid Appearance and Odor: Melting Point: Boiling Point: Flash Pt: Evaporation Rate: Flammability (solid, gas): Solution Explosive Limits: LEL: UEL: Vapor Pressure (vs. Air or mm Hg): Vapor Density (vs. Air = 1): Specific Gravity (Water = 1): Solubility in Water: Autoignition Pt: 9.2 Other Information Percent Volatile: 10.1 10.2 10.3 10.4 Reactivity: Stability: Stability Note(s): Polymerization: Conditions To Avoid: Section 10. Stability and Reactivity Unstable [ ] Stable [ X ] Stable if stored in accordance with information listed on the product insert. Will occur [ ] Will not occur [ X ] 10.5 Incompatibility - Materials alkali metals To Avoid: bases oxidizing agents reducing agents 10.6 Hazardous Decomposition or Byproducts: carbon dioxide carbon monoxide

Caspase-3 Dithiothreitol (1M) Page: 5 of 6 11.1 Information on Toxicological Effects: Chronic Toxicological Effects: Section 11. Toxicological Information The toxicological effects of this compound have not been thoroughly studied. DL-Dithiothreitol - Toxicity Data: Intraperitoneal LD50 (mouse): 154 mg/kg; Only select Registry of Toxic Effects of Chemical Substances (RTECS) data is presented here. See actual entry in RTECS for complete information. DL-Dithiothreitol RTECS Number: EK1610000 Carcinogenicity: NTP? No IARC Monographs? No OSHA Regulated? No CAS # Hazardous Components (Chemical Name) NTP IARC ACGIH OSHA 3483-12-3 DL-Dithiothreitol n.a. n.a. n.a. n.a. 7647-14-5 Sodium chloride n.a. n.a. n.a. n.a. 7447-40-7 Potassium chloride n.a. n.a. n.a. n.a. 7558-79-4 Sodium phosphate, Dibasic n.a. n.a. n.a. n.a. 7778-77-0 Potassium phosphate, Monobasic n.a. n.a. n.a. n.a. 7732-18-5 Water n.a. n.a. n.a. n.a. Section 12. Ecological Information 12.1 12.2 12.3 12.4 12.5 Toxicity: Persistence and Degradability: Bioaccumulative Potential: Mobility in Soil: Results of PBT and vpvb assessment: Avoid release into the environment. Runoff from fire control or dilution water may cause pollution. 12.6 Other adverse effects: Section 13. Disposal Considerations 13.1 Waste Disposal Method: Dispose in accordance with local, state, and federal regulations. 14.1 LAND TRANSPORT (US DOT): Section 14. Transport Information DOT Proper Shipping Name: Not dangerous goods. DOT Hazard Class: UN/ Number: 14.1 LAND TRANSPORT (European ADR/RID): ADR/RID Shipping Name: Not dangerous goods. UN Number: Hazard Class: 14.3 AIR TRANSPORT (ICAO/IATA): ICAO/IATA Shipping Name: Additional Transport Not dangerous goods. Transport in accordance with local, state, and federal regulations. Information:

Caspase-3 Dithiothreitol (1M) Section 15. Regulatory Information Page: 6 of 6 EPA SARA (Superfund Amendments and Reauthorization Act of 1986) Lists CAS # Hazardous Components (Chemical Name) S. 302 (EHS) S. 304 RQ S. 313 (TRI) 3483-12-3 DL-Dithiothreitol No No No 7647-14-5 Sodium chloride No No No 7447-40-7 Potassium chloride No No No 7558-79-4 Sodium phosphate, Dibasic No Yes 5000 LB No 7778-77-0 Potassium phosphate, Monobasic No No No 7732-18-5 Water No No No CAS # Hazardous Components (Chemical Name) Other US EPA or State Lists 3483-12-3 DL-Dithiothreitol CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - 7647-14-5 Sodium chloride CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - 7447-40-7 Potassium chloride CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - 7558-79-4 Sodium phosphate, Dibasic CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - 7778-77-0 Potassium phosphate, Monobasic CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - 7732-18-5 Water CAA HAP,ODC: No; CWA NPDES: No; TSCA: Yes - Regulatory Information Statement: This SDS was prepared in accordance with 29 CFR 1910.1200 and Regulation (EC) No.1272/2008. Section 16. Other Information Revision Date: Additional Information About 05/08/2015 This Product: Company Policy or Disclaimer: DISCLAIMER: This information is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes.

Caspase-3 Assay Buffer Page: 1 of 6 according to Regulation (EC) No. 1907/2006 as amended by (EC) No. 1272/2008 Section 1. Identification of the Substance/Mixture and of the Company/Undertaking 1.1 Product Code: Product Name: 10010213 Caspase-3 Assay Buffer 1.2 Relevant identified uses of the substance or mixture and uses advised against: Relevant identified uses: For research use only, not for human or veterinary use. 1.3 Details of the Supplier of the Safety Data Sheet: Company Name: Web site address: Cayman Chemical Company 1180 E. Ellsworth Rd. Ann Arbor, MI 48108 www.caymanchem.com Information: Cayman Chemical Company +1 (734)971-3335 1.4 Emergency telephone number: Emergency Contact: CHEMTREC Within USA and Canada: +1 (800)424-9300 CHEMTREC Outside USA and Canada: +1 (703)527-3887 Acute Toxicity: Oral, Category 5 Section 2. Hazards Identification 2.1 Classification of the Substance or Mixture: 2.1.1 Classification according to Regulation (EC) No 1272/2008 [CLP]: 2.2 Label Elements: 2.2.1 Labeling according to Regulation (EC) No 1272/2008 [CLP]: GHS Signal Word: GHS Hazard Phrases: Warning H303: May be harmful if swallowed. GHS Precaution Phrases: No phrases apply. GHS Response Phrases: P312: Call a POISON CENTER or doctor/physician if you feel unwell. GHS Storage and Disposal Phrases: Please refer to Section 7 for Storage and Section 13 for Disposal information. 2.3 Adverse Human Health Material may be irritating to the mucous membranes and upper respiratory tract. Effects and Symptoms: May be harmful by inhalation, ingestion, or skin absorption. May cause eye, skin, or respiratory system irritation. To the best of our knowledge, the toxicological properties have not been thoroughly investigated. Section 3. Composition/Information on Ingredients CAS # / RTECS # Hazardous Components (Chemical Name)/ REACH Registration No. Concentration EC No./ EC Index No. GHS Classification 7647-14-5 VZ4725000 7447-40-7 TS8050000 7558-79-4 WC4500000 Sodium chloride 0.0-5.0 % 231-598-3 Potassium chloride 0.0-1.0 % 231-211-8 Sodium phosphate, Dibasic 0.0-1.0 % 231-448-7 Acute Tox.(O) 5: H303 Aquatic (A) 3: H402 Eye Damage 2: H319 7778-77-0 Potassium phosphate, Monobasic 0.0-1.0 % 231-913-4

Caspase-3 Assay Buffer Page: 2 of 6 TC6615500 7732-18-5 ZC0110000 Water 92.0-100.0 % 231-791-2 Section 4. First Aid Measures 4.1 Description of First Aid Measures: In Case of Inhalation: In Case of Skin Contact: In Case of Eye Contact: In Case of Ingestion: Remove to fresh air. If not breathing, give artificial respiration or give oxygen by trained personnel. Get immediate medical attention. Immediately wash skin with soap and plenty of water for at least 15 minutes. Remove contaminated clothing. Get medical attention if symptoms occur. Wash clothing before reuse. Hold eyelids apart and flush eyes with plenty of water for at least 15 minutes. Have eyes examined and tested by medical personnel. Wash out mouth with water provided person is conscious. Never give anything by mouth to an unconscious person. Get medical attention. Do NOT induce vomiting unless directed to do so by medical personnel. 5.1 Suitable Extinguishing Media: Unsuitable Extinguishing Media: Section 5. Fire Fighting Measures Use alcohol-resistant foam, carbon dioxide, water, or dry chemical spray. Use water spray to cool fire-exposed containers. A solid water stream may be inefficient. 5.2 Flammable Properties and Hazards: Flash Pt: Explosive Limits: LEL: UEL: Autoignition Pt: 5.3 Fire Fighting Instructions: As in any fire, wear self-contained breathing apparatus pressure-demand (NIOSH approved or equivalent), and full protective gear to prevent contact with skin and eyes. Section 6. Accidental Release Measures 6.1 Protective Precautions, Avoid breathing vapors and provide adequate ventilation. Protective Equipment and As conditions warrant, wear a NIOSH approved self-contained breathing apparatus, or respirator, Emergency Procedures: and appropriate personal protection (rubber boots, safety goggles, and heavy rubber gloves). 6.2 Environmental Precautions: Take steps to avoid release into the environment, if safe to do so. 6.3 Methods and Material For Contain spill and collect, as appropriate. Containment and CleaningTransfer to a chemical waste container for disposal in accordance with local regulations. Up: 7.1 7.2 Precautions To Be Taken in Handling: Precautions To Be Taken in Storing: Section 7. Handling and Storage Avoid breathing dust/fume/gas/mist/vapours/spray. Avoid prolonged or repeated exposure. Keep container tightly closed. Store in accordance with information listed on the product insert.