INDIGO CARMINE

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: Syn:  Indigo-5,5’-disulfonic acid disodium salt, Acid blue 74 CAS No.: 860-22-0 E-C No.:205-194-2	
Weight:  273.76g/mol 	Formula: C15H15N3.HCl

2. HAZARDS:  GHS Class Skin sensitization (Category 1)		
 Pictogram: 					
Signal Word:         WARNING
HAZARD STATEMENT: H317: May cause an allergic skin reaction. 
PRECAUTIONARY STATEMENT: P261: Avoid breathing dust/fume/gas/mist/spray/vapor.  P272: Contaminated clothing must not be allowed out of the workplace. P280: Wear protective gloves.  P302 + P352: If on Skin: Wash with plenty of soap & water. P333 +P313: If skin irritation or rash occurs: get medical attention. P363: Wash contaminated clothing before reuse. P501: Dispose of contents/container to an approved waste disposal plant.
2.3: Other Hazards: none

3. COMPOSITION / INFO ON INGREDIENTS: 
Chemical 								 CAS No.	 	Percent		
Disodium 5,5’(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-
3H-indol-3-one)disulphonate	              					  860-22-0               100%            

4. FIRST AID: Eyes: Rinse with plenty of water Skin: Rinse with plenty of soap & water Ingestion: Do not induce vomiting w/o medical advice. Rinse with water. Inhalation: Move to fresh air. Physician: Treat symptomatically & supportively. 

5. FIRE FIGHTING: Info: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH & full PPE. Irritating & highly toxic gases may be generated by thermal decomp/combustion. Special Hazards: Carbon, sulfur, sodium & nitrogen oxides. Extinguishing: use water, dry chemical, chemical foam, or alcohol-resistant foam. 
Flash Pt: Not applicable. Auto-ignition Temp: Not applicable. Explosion Limits: Not available. 

6. ACCIDENTAL RELEASE: Info: Use proper PPE as indicated in Section 8. Spills/Leaks: Sweep up, then place into a suitable 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. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Store protected from light. Storage: Keep containers tightly closed. Store protected from light. Store in a cool, dry area away from incompatible substances. 

8. EXPOSURE: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low. 
Chemical	                        	ACGIH                            NIOSH                OSHA - Final / Vacated PEL’s 
C.I. Acid Blue 74                       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 clothing to prevent skin exposure. 0.11 mm thick nitrile Clothing: Wear appropriate protective clothing to prevent skin exposure. 
Respirators: A respiratory protection program that meets OSHA’s 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator’s use. 

9. PHYSICAL & CHEM: Appearance: Dark blue to dark purple powder. pH: 3.87 at 7.14g/l at 30°C Melting pt: >340°C Relative density: 0.71 g/cm3 at 29°C, Solubility 1g/l at 27°C Decomp Temp: 340°C Partition coefficient: n-octanol/water: log Pow: -3.57 Bioaccumulation is not expected. 
 
10. STABILITY & REACTIVITY: Stability: Stable under ordinary conditions of use & storage. Light sensitive. Avoid: Incompatibles, light. Incompatibilities: Oxidizing agents, Nitric acid.  Haz Decomp Products: see sec. 5

11. TOXICOLOGICAL INFO: RTECS:  DU3000000 LD50/LC50: Oral, rat: LD50 = 2 gm/kg; 
Carcinogenicity: CAS# 860-22-2: Not listed ACGIH, IARC, NIOSH, NTP, or OSHA. Tumors at site of application

12. ECOLOGICAL INFO: Fresh Water Algae – 2,079mg/l-72h not readily biodegradable. 

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 (TPQ/RQ) None of the chemicals in this product have a TPQ/RQ. 
Section 313  No chemicals are reportable. STATE CAS# 860-22-0 is not present on state lists from CA, MN, MA, FL. 
PA & NJ Right to Know:	Disodium 5,5’(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-
3H-indol-3-one)disulphonate CAS#860-22-0
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# 860-22-0: 1 
Canada - DSL/NDSL CAS# 860-22-0 is listed on Canada’s DSL List. 
Canada - WHMIS This product has a WHMIS classification of Not controlled. 

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.