SAFETY DATA SHEET Page: 1 MTT Reagent Revision: …

1 04/16/2019 Revision: Page: 1 of 5 MTT ReagentSAFETY DATA SHEET12/03/2013 Supersedes Revision: according to Regulation (EC) No. 1907/2006 as amended by (EC) No. 2015/830 and US OSHA HCS Product Code:Section 1. Identification of the Substance/Mixture and of the Company/UndertakingMTT Reagent Product Name:Cayman Chemical CompanyCompany Name:1180 E. Ellsworth Arbor, MI 48108 CHEMTREC Within USA and Canada:Emergency Contact:+1 (800)424-9300 CHEMTREC Outside USA and Canada:+1 (703)527-3887 Cayman Chemical CompanyInformation:+1 (734)971-3335 For research use only, not for human or veterinary identified site Details of the Supplier of the SAFETY Data Relevant identified uses of the substance or mixture and uses advised Emergency telephone number:Section 2.

2 Hazards IdentificationSkin Corrosion/Irritation, Category 2 Serious Eye Damage/Eye Irritation, Category 2 Germ Cell Mutagenicity, Category 2 Specific Target Organ Toxicity (single exposure), Category Classification of the Substance or Mixture:H315: Causes skin : Causes serious eye : May cause respiratory : Suspected of causing genetic Hazard Label Elements:WarningGHS Signal Word:P201: Obtain special instructions before : Do not handle until all SAFETY precautions have been read and : Avoid breathing {dust/fume/gas/mist/vapors/spray}.P264: Wash {hands} thoroughly after : Wear {protective gloves/protective clothing/eye protection/face protection}.

3 GHS Precaution Phrases:P302+352: IF ON SKIN: Wash with plenty of soap and +340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for +351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easyto do. Continue +313: IF exposed or concerned: Get medical : Call a POISON CENTER or doctor/physician if you feel +313: If skin irritation occurs, get medical +313: If eye irritation persists, get medical Response Phrases:Multi-region format04/16/2019 Revision: Page: 2 of 5 MTT ReagentSAFETY DATA SHEET12/03/2013 Supersedes Revision: P362+364.

4 Take off contaminated clothing and wash it before refer to Section 7 for Storage and Section 13 for Disposal Storage and Disposal serious eye skin is irritating to the mucous membranes and upper respiratory be harmful by inhalation, ingestion, or skin cause respiratory of causing genetic the best of our knowledge, the toxicological properties have not been thoroughly Human HealthEffects and Symptoms:CAS # /RTECS #Hazardous Components (Chemical Name)/REACH Registration 3. Composition/Information on IngredientsConcentrationEC Index Classification 298-93-1XF80600003-(4,5-Dimethylthiazol- 2-yl)-2, %206-069-5 NASkin Corr.

5 2: H315 Eye Damage 2A: H319 STOT (SE) 3: H335 H336 Mutagen 2: H341 Section 4. First Aid MeasuresDescription of First AidMeasures:Hold eyelids apart and flush eyes with plenty of water for at least 15 minutes. Have eyes examinedand tested by medical Case of Eye Contact:Immediately wash skin with soap and plenty of water for at least 15 minutes. Remove contaminatedclothing. Get medical attention if symptoms occur. Wash clothing before Case of Skin Contact:Wash out mouth with water provided person is conscious. Never give anything by mouth to anunconscious person. Get medical attention. Do NOT induce vomiting unless directed to do so bymedical Case of Ingestion:Remove to fresh air.

6 If not breathing, give artificial respiration or give oxygen by trained immediate medical Case of 5. Fire Fighting MeasuresFlash Pt:No in any fire, wear self-contained breathing apparatus pressure-demand (NIOSH approved orequivalent), and full protective gear to prevent contact with skin and Fighting Instructions:Autoignition Pt:No Limits:LEL: No data. UEL: No alcohol-resistant foam, carbon dioxide, water, or dry chemical water spray to cool fire-exposed ExtinguishingMedia:A solid water stream may be ExtinguishingMedia:No data Properties data format04/16/2019 Revision: Page: 3 of 5 MTT ReagentSAFETY DATA SHEET12/03/2013 Supersedes 6.

7 Accidental Release MeasuresContain spill and collect, as to a chemical waste container for disposal in accordance with local and Material ForContainment and CleaningUp:Avoid raising and breathing dust, and provide adequate conditions warrant, wear a NIOSH approved self-contained breathing apparatus, or respirator,and appropriate personal protection (rubber boots, SAFETY goggles, and heavy rubber gloves).Protective Precautions,Protective Equipment andEmergency Procedures:Take steps to avoid release into the environment, if safe to do 7. Handling and StorageAvoid breathing dust/fume/gas/mist/ prolonged or repeated To Be Takenin Handling:Keep container tightly in accordance with information listed on the product To Be Takenin Storing:Light Precautions:Section 8.

8 Exposure Controls/Personal Exposure approved respirator, as conditions Equipment(Specify Type): SAFETY glassesEye Protection:Compatible chemical-resistant glovesProtective Gloves:Lab coatOther Protective Clothing:Use process enclosures, local exhaust ventilation, or other engineering controls to control airbornelevels below recommended exposure Controls(Ventilation etc.):Do not take storing or utilizing this material should be equipped with an eyewash and a SAFETY thoroughly after Practices:No data Exposure Personal protection equipment:Section 9. Physical and Chemical PropertiesPhysical States:[ ] Gas [ ] Liquid [ X ] SolidMelting Point:No Point:No Pt:No Limits:LEL: No data.

9 UEL: No Pressure (vs. Air or mmHg):No Density (vs. Air = 1):No Rate:No :No solidAppearance and Information on Basic Physical and Chemical PropertiesFlammability (solid, gas):No data format04/16/2019 Revision: Page: 4 of 5 MTT ReagentSAFETY DATA SHEET12/03/2013 Supersedes Revision: Specific Gravity (Water = 1):No in Water:No in: water; EtOH; 2-methoxyethanol;Solubility Notes:Octanol/Water PartitionCoefficient:No Temperature:No Pt:No :No Volatile:No Other InformationMolecular Formula & Weight:C18H16 BrN5S 10. Stability and ReactivityLight sensitiveConditions To Avoid:Unstable [ ] Stable [ X ]Stability:strong oxidizing agentsIncompatibility - MaterialsTo Avoid:carbon dioxidecarbon monoxidehydrogen bromide gasnitrogen oxidessulfur oxidesHazardousDecomposition orByproducts:Will occur [ ] Will not occur [ X ]Polymerization:Stable if stored in accordance with information listed on the product Note(s):No data #Hazardous Components (Chemical Name)NTPS ection 11.

10 Toxicological InformationThe toxicological effects of this product have not been thoroughly onToxicological Effects:IARCACGIHOSHA 298-93-13-(4,5-Dimethylthiazol-2-yl)-2,5 -diphenyltetrazolium bromide release into the from fire control or dilution water may cause :Section 12. Ecological InformationNo data andDegradability:No data :No data in Soil:No data of PBT and data adverse effects:Multi-region format04/16/2019 Revision: Page: 5 of 5 MTT ReagentSAFETY DATA SHEET12/03/2013 Supersedes in accordance with local, state, and federal Disposal Method:Section 13. Disposal ConsiderationsSection 14.