AZURE C
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 ID: Syn: 3-Amino-7- Methylaminophenothiazin-5-ium chloride * Azure C * 3- Imino-7-(methylamino) -3H-Phenothiazine hydrochloride * monomethyldiaminodiphenazothionium chloride * monomethylthionine * monomethylthionine chloride *.  CAS: 531-57-7  EC-No.: 208-512-8  Weight: 277.78 Formula: C13H12CIN3S

2. HAZARDS  ID:  GHS Classification:  Not a hazardous substance

HMIS CLASSIFICATION:  Health hazard:  0   Flammability:  0   Physical hazard:   0 		                                 
NFPA RATING:  Health hazard:   0   Fire:   0    Reactivity hazard: 0

Potential Effects : Eye: May cause eye irritation.   Skin: May cause skin irritation.  Ingestion: May be harmful if swallowed. Inhalation: May be harmful by inhalation.   Chronic: No information found.
2.3: Other Hazards: none

3. COMPOSITION/INFO ON INGREDIENTS: 
Chemical                           CAS No.                                Percent                    Hazardous
Azure C                              531-57-7                             ~90%                          No

4. FIRST AID: Eyes: Flush eyes with plenty of water as a precaution. Skin: Flush skin with plenty of soap& water. 
Ingestion: If victim is conscious and alert, give water to rinse mouth. Never give anything by mouth to an unconscious person.  Do NOT induce vomiting. Inhalation: Remove to fresh air immediately. If not breathing give artificial respiration.  

5. FIREFIGHTING: Info: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH, & full PPE. Irritating 
and highly toxic gases may be generated by thermal decomp or combustion. Extinguishing: Use water spray, carbon dioxide, dry chem powder or alcohol-resistant foam. 

6. ACCIDENTAL RELEASE: Info: Use proper PPE as indicated in Section 8. Spill/Leaks: Sweep up or vacuum material and place in 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 only in a well-ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid breathing dust.  Keep container tightly closed.  Avoid ingestion and inhalation. Storage: Store in a cool, dry place, well-ventilated area away from incompatible substances. Store in a tightly closed container. 

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 
Azure C                                  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 rubber boots and heavy rubber gloves. Clothing: Wear appropriate protective clothing to prevent skin exposure. Respirators: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. 

9. PHYSICAL & CHEM: Appearance: Blackish green powder Melting Pt 290°C (554°F)  

10. STABILITY & REACTIVITY: Stability: Stable under normal temperatures and pressures. Avoid: Dust generation. Incompatibilities: Strong oxidizing agents. Hazardous Decomp Products: see section 5

11. TOXICOLOGICAL INFO: RTECS#: SP5680000.  LD50/LC50: Not available. 
Carcinogenicity:  CAS#531-57-7:  Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.

12. ECOLOGICAL INFO: Environmental Fate & Toxicity:  No information available. 

13. DISPOSAL CONSIDERATIONS: Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. U.S. 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 information. 
RCRA P-Series:  None listed.   RCRA U-Series:  None listed.

14. TRANSPORT INFO: Not regulated

15. REGULATORY INFO: SARA Section 302 Extremely Hazardous Substances: None of the chemicals in this product have a RQ/TPQ. Section 313   No chemicals re reportable under Section 313
State CAS# 531-57-7 is not present on state lists from CA, MA, MN, FL.
Pa Right to Know: 3-Amino-7-methylaminophenothiazin-5-ium chloride
NJ Right to Know:  3-Amino-7-methylaminophenothiazin-5-ium chloride.
California No Significant Risk Level:  None of the chemicals in this product are listed.

EUROPEAN/INTERNATIONAL REGULATIONS European Labeling in Accordance with EC Directives
Hazardous Symbols: Not available     WGK (Water Danger/Protection): CAS# 531-57-7:  Not available
Canada – DSL/NDSL     CAS# 531-57-7 is not listed on Canada’s DSL List.
Canada – WHMIS:  is not available. /  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.