ETHYL EOSIN 

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: None. CAS No.: 6359-05-3.  	Weight: 714.03	Formula: C22H11Br4O5K.  

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

HMIS Classification: Health hazard  0, Flammability   0,  Physical hazards   0			
NFPA Rating: Health hazard 0, Fire     0, Reactivity hazard   0
2.3: Other Hazards: none

3. COMPOSITION / INFO ON INGREDIENTS: 
Chemical Name				CAS No.		Percent		Hazardous
Ethyl Eosin                                                                  6359-05-3                 100%		     No

4. FIRST AID: Eyes: rinse with plenty of water as precaution. 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 in pressure-demand, MSHA/NIOSH (approved or & full PPE. Irritating & highly toxic gases may be generated by thermal decomp/combustion. Special Hazards: Carbon oxides Hydrogen bromide gas, potassium oxides. Extinguishing: Use water spray, dry chemical, carbon dioxide, 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: Clean up spills immediately, observing precautions in the PPE Section. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. 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. 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.  

8. EXPOSURE CONTROLS / PPE: Controls: Use adequate ventilation to keep airborne concentrations low. 
Exposure Limits 
Chemical Name                                ACGIH                    NIOSH             OSHA-Final/ Vacated PELs
Ethyl Eosin                                         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. 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 to brown powder.  

10. STABILITY & REACTIVITY:  Stability: Stable under normal temps & pressures. Avoid: Incompatibles, strong oxidants. Incompatibilities: Oxidizing agents. Haz Decomp: see section 5

11. TOXIC INFO: RTECS#: unlisted LD50/LC50: N/A 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 REGULATIONS: No information available. 

15. REGULATORY INFO: SARA 311/312: None
Section 302 (RQ) & Section 302 (TPQ) None of the chemicals in this material or product have RQ or TPQ. 
Section 313 No chemicals are reportable under Section 313. 
STATE CAS# 6359-05-3 is not present on state lists from CA, MN, MA, FL. 
PA & NJ Right to Know:  Potassium ethyl o-(2,4,5,7-tetrabromo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate  CAS#6359-05-3
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 
Hazard Symbols: Not available. WGK (Water Danger/Protection) CAS# 6359-05-3: No information available. 
Canada - DSL/NDSL None of the chemicals in this product are listed on the DSL or NDSL list.  
Canada - WHMIS Not available. 

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.