MAY-GRUNWALD STAIN

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: Prepared with non-polychromed (non-oxidized) Methylene Blue and Eosin Y.

2.HAZARDS: GHS Class:  Not a hazardous substance
HMIS Class: 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  			CAS No.		Percent		Hazardous
May-Grunwald Stain 		  N/A				      No	

4. FIRST AID: Inhalation: Remove to fresh air.  If not breathing, give artificial respiration.  If breathing is difficult, give oxygen. Call a physician.  Ingestion: If swallowed, wash out mouth with water, provided person is conscious. Call a physician immediately. Skin: Remove any contaminated clothing.  Wash skin with soap or mild detergent and water for at least 15 minutes.  Get medical attention if irritation develops or persists. Eye: Wash eyes with plenty of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Get medical attention immediately.

5. FIRE FIGHTING: Info: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH & full PPE.  Hazards: Carbon, Sulfur, & nitrogen oxides, HCl gas. Extinguishing: Water Spray, Carbon Dioxide, Dry Chem or alcohol-resistant foam        

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 Protective Equipment section. Avoid generating dusty conditions. Provide ventilation. 

7. HANDLING & STORAGE:  Handling: Wash thoroughly after handling. 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 incompatibles.   

8. EXPOSURE: 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 				ACGIH		NIOSH		OSHA - Final / Vacated PEL’s
May-Grunwald Stain			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 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:  Dark green – dark brown crystalline powder   Solubility:  soluble in water. 

10. STABILITY & REACTIVITY: Stability: Stable at room temp in closed containers under normal storage & handling.  Avoid: Incompatibles Incompatibilities: Strong oxidizing agents. Haz Decomp: see section 5

11. TOXIC INFO: RTECS: Unlisted  LD50/LC50:  N/A Carcinogenicity: Not in ACGIH, IARC, NIOSH, NTP, or OSHA. 

12. ECOLOGICAL INFO: No data.

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: acute health hazard
SARA Section 302 Extremely Hazardous Substances None of the chemicals in this product have a TPQ/RQ.
Section 313 No chemicals are reportable under Section 313. 
STATE May-Grunwald Stain is not present on state lists from CA, MN, MA, FL. 

PA/NJ Right to Know: 2-(3,6-Dihydroxy-2,4,5,7-tetrabromoxanthen-9-yl)-benzoic acid  CAS#15086-94-9 & 
Methylthioninium chloride  CAS#61-73-4
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 
WGK (Water Danger/Protection) CAS#    Not available.
Canada - DSL/NDSL May-Grunwald Stain is not listed on Canada’s DSL List or NDSL List. 
Canada – WHMIS:  Not available. May-Grunwald Stain 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.