2,3,5-TRIPHENYLTETRAZOLIUM CHLORIDE

Safety Data Sheet
Emergency Telephone Number: CHEMTREC 1-800-424-9300       For Information call: DUDLEY 732-886-3100       
      DUDLEY CORPORATION
           	       125 Kenyon Drive
       				         	       Lakewood, New Jersey 08701
Effective Date: January 1, 2025	
1. PRODUCT:  CAS No.: 298-96-4 E-C No.:206-071-6	  Weight:  334.80g/mol 	Formula: C19H15ClN4

2. HAZARDS: GHS Class:  Skin irritation (Cat2) Eye irritation (Cat 2A)	 Flammable solids (Cat. 1)
					                    
 Pictogram: 					 
Signal Word:         DANGER
HAZARD STATEMENT:H315: Causes skin irritation.  H319: Causes eye irritation.       
Precautionary Statement: P302 + P352: If on skin; wash with plenty of soap and water. P332 +P337 + P313: If eye or skin irritation persist; get medical advice / attention. P305 + P351: If in Eyes: rinse cautiously with water for several minutes, remove contact lenses, if present and easy to do. Continue rinsing. P264: Wash skin thoroughly after handling. P210: Keep away from heat/sparks/open flames/ hot surfaces. No smoking. P362: Take off contaminated clothing and wash before reuse. P280: Wear protective gloves/protective clothing/eye protection/face protection. P370 +P378: In case of fire: use dry sand, dry chemical or alcohol-resistant foam to extinguish. P240: Ground/bond container and receiving equipment.  

Potential Effects: Eye: Risk of serious damage to eyes.	Skin: Harmful in contact with skin. 
Ingestion: Harmful if swallowed. 		    Inhalation: May be harmful by inhalation. 
2.3: Other Hazards: none

3. COMPOSITION / INFO ON INGREDIENTS: 
Chemical 					 CAS No.	 	Percent		
2,3,5-Triphenyltetrazolium chloride                          298-96-4                  90-100%                  

4. FIRST AID: Eyes: Rinse with plenty of water. Skin: Rinse with plenty of soap & water Ingestion: Do not induce vomiting without medical advice. Rinse with water. Consult physician. Inhalation: Move to fresh air.  Consult a physician.
Physician: Treat symptomatically and supportively. 

5. FIRE FIGHTING: Info: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH & full PPE. Dusts at sufficient concentrations can form explosive mixtures with air. Irritating and highly toxic gases may be generated by thermal decomp/combustion. Vapor may be heavier than air. They can spread along the ground and collect in low or confined areas. Hazards: Carbon, Nitrogen oxides, hydrogen chloride gas.  Extinguishing: use water, dry chemical, chemical foam, or alcohol-resistant foam. Flash Pt: Non-Flammable. Auto-ignition Temp: N/A Explosion Limits: N/A 

6. ACCIDENTAL RELEASE: Info: Use proper PPE as indicated in Section8.  Spills/Leaks: Clean up spills immediately, observing precautions in the Protective Equipment Section. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.  

7. HANDLING & STORAGE: Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Storage: Store in a cool, dry, well-ventilated area away from incompatibles. Keep containers tightly closed. Protect against light.  Recommended storage temp:  2 -8 ° C

8. EXPOSURE: Local exhaust may be necessary to control concentrations to acceptable levels. 
Chemical 	                      		ACGIH                        NIOSH                 OSHA - Final PELs
2,3,5-Triphenyl-2H- tetrazolium chloride 	None listed               None listed         None listed. 

PPE: Eyes: Wear appropriate protective eyeglasses or chemical goggles as described by OSHA’s eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. 0.11mm thick nitrile. Clothing: Wear appropriate protective clothing to prevent skin exposure. Respirators: Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator, when necessary.

9. PHYSICAL & CHEM: Appearance: White to yellow powder Melting Pt: 243˚C (469˚F)  pH: ca. 3.7 at 10 g/l at 20°C Water solubility: ca. 150 g/l at 25°C Bulk Density: ca.230 kg/m3

10. STABILITY & REACTIVITY: Stability: Stable under normal temp & pressures. Materials containing similar functional groups can decompose at elevated temps.  Avoid: High temp, incompatibles, light excess heat, flames/sparks. strong oxidants. Incompatibilities: Strong oxidizers. Haz Decomp: see section 5

11. TOXIC INFO: RTECS#: XF8100000. LD50/LC50: Intravenous mouse-5.6mg/kg 
Carcinogenicity: Not in ACGIH, NIOSH, NTP, or OSHA.  

12. ECOLOGICAL INFO:  Not regulated.

13. DISPOSAL CONSIDERATIONS: Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification. 
RCRA P-Series: None listed. RCRA U-Series: None listed. 

14. TRANSPORT REGULATIONS:  Not regulated.

15. REGULATORY INFO: SARA 311/312: Acute Health Hazard
Section 302 (RQ) & Section 302 (TPQ) None of the chemicals in this material/product have an RQ or TPQ. 
Section 313 No chemicals are reportable under Section 313. 
STATE CAS# 298-96-4 is not present on state lists from CA, MN, MA, FL. 
Pa/ NJ Right to Know:  2,3,5-Triphenyltetrazolium chloride  CAS#298-96-4
California Prop.65: None of the chemicals are known to cause cancer, birth defects, or any other reproductive harm.

EUROPEAN/INTERNATIONAL REGULATIONS European Labeling in Accordance with EC Directives 
Hazard Symbols: XN.	WGK (Water Danger/Protection) CAS# 298-96-4:2 
Canada -DSL/NDSL CAS# 298-96-4 is listed on Canada’s DSL List. Canada -WHMIS: N/A

16. DISCLAIMER INFO: DUDLEY CORPORATION provides the information herein in good faith but makes no representation as to its comprehensiveness or accuracy. This document is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this.  Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose. DUDLEY CORPORATION makes no representations or warranties, either expressed or implied, including without limitation and warranties of merchantability, fitness for a particular purpose with respect to the information set forth herein or to the product to which the information refers. Accordingly, DUDLEY CORPORATION will not be responsible for damages resulting from the use of or reliance upon this information.