CHROMOTROPE 2B

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, 2024
1. PRODUCT ID: Syn:  Acid Red 176, 2-(Nitrophenylazo)chromotropic acid disodium salt 	CAS No.: 548-80-1
 E-C No.:208-959-9	Weight:  513.37g/mol 	Formula: C16H9N3.Na2O10S2

2. HAZARDS ID: GHS: Not a hazardous substance or mixture.

HMIS: Health hazard  2, Flammability   0,  Physical hazards   0			
NFPA Rating: Health hazard  2, Fire     0, Reactivity hazard   0

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

3. COMPOSITION / INFO ON INGREDIENTS: 
Chemical Name			 CAS No.	 	Percent		
Chromotrope 2B		                   548-80-1               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. Inhalation: Move to fresh air.  Physician: Treat symptomatically & supportively. 

5. FIRE FIGHTING: Info: wear a self-contained breathing apparatus if necessary Extinguishing: Use water spray, dry chemical, carbon dioxide, or alcohol-resistant foam. Hazards: Carbon, Sulphur, Sodium, & nitrogen oxides

6. ACCIDENTAL RELEASE: Info: Use proper PPE as indicated in Section 8. Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the PPE section. Avoid generating dusty conditions. Provide ventilation. 

7. HANDLING & STORAGE: Handling: Wash thoroughly after handling. 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 tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep container closed when not is use.  

8. EXPOSURE CONTROLS: Facilities storing or utilizing this material should be equipped with an eyewash facility and safety shower. Use adequate ventilation to keep airborne concentrations low.
Chemical Name			ACGIH		NIOSH		OSHA - Final / Vacated PEL’s
Chromotrope 2B			None listed	None listed	None listed

PPE: Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA’s eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective 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: Red-brown to green-brown powder.	Melting Pt: 300˚C (572˚F)	

10. STABILITY & REACTIVITY:  Stability: Stable at room temp. in closed containers under normal storage and handling conditions. Avoid: Incompatibles, dust generations, strong oxidants.
Incompatibilities: Oxidizing agents. Hazardous Decomposition Products: see section 5

11. TOXICOLOGICAL INFO: RTECS: unlisted. LD50/LC50: N/A Other Studies: May cause respiratory irritation
Carcinogenicity: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA. 

12. ECOLOGICAL INFO: No information available.

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 INFO: Not regulated.

15. REGULATORY INFO: SARA 311/312: None
CERCLA Haz. Substances & corresponding RQ/TPQs None of the chemicals in material have an RQ/TPQ. 
Section 313 No chemicals are reportable under Section 313.
STATE CAS# 548-80-1 is not present on state lists from CA, MN, MA, FL. 
PA & NJ Right to Know: Disodium 4,5-dihydroxy-3-(p-nitrophenylazo)naphthalene-2,7-disulphonate  
CAS#548-80-1
California Prop.65 components: 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 
Hazardous Symbols:  Not available. WGK (Water Danger/Protection) CAS# 548-80-1: No information available.
Canada - DSL/NDSLCAS# 548-50-1 is listed on Canada’s DSL List. 
Canada - WHMIS: Not available. CAS# 548-80-1 is not listed on Canada’s Ingredient Disclosure List. 

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.