PRIMULINE 
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:   C.I. 49000; Direct Yellow 59; Primuline Yellow; Thioflavine S
CAS No.:  8064-60-6 EC No.: 8064-60-6 Weight:  475.53 Formula:  C21H14N3O3S3Na

2.HAZARDS ID: GHS:  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

Potential Effects: Eye: Risk of serious damage to eyes.	Skin: Harmful in contact with skin.  Ingestion: Harmful if swallowed.  Inhalation: Harmful by inhalation.  May cause irritation of respiratory tract.  The toxicological properties of this material have not been fully tested
2.3: Other Hazards: none

3. COMPOSITION, INFO ON INGREDIENTS:
Chemical  		  CAS No.			Percent		Hazardous
Primulin		                    8064-60-6 		90-100%                  No		 		

4. FIRST AID: Eyes: rinse immediately 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. Water mist may be used to cool closed containers. Extinguishing: Use dry chem, CO2, water spray or alcohol resistant foam.  Hazards:  Carbon oxides, nitrogen oxides, Sulfur oxides.                                                

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

7. HANDLING & STORAGE: Handling: Avoid contact with eyes, skin, and clothing.  Avoid prolonged or repeated exposure.  Avoid ingestion and inhalation.  Use with adequate ventilation. Storage: cool, dry, well-ventilated area away from incompatible substances.  Store in a tightly closed containers.

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
 Primulin				None listed	None listed	None listed			 

PPE: Eyes: Wear appropriated protective eyeglasses or chemical safety goggles as described by OSHA’s eye and face protection regulations in 29 CFR 1910.133 or European Standard EN 166. Skin:  Wear appropriate protective gloves to prevent skin exposure. 0.11mm nitrile Clothing:  Wear appropriate protective clothing (Lab coat, overalls) 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:  Yellow to yellow-gold to orange to light brown powder. Melting Pt:  > 300° C 

10. STABILITY & REACTIVITY: Stability: Stable at room temp in closed containers under normal storage/handling. Avoid:  Exposure to air or moisture over prolonged periods. Incompatibilities:  Strong oxidizing agents. Haz Decomp:  see section 5

11. TOXICOLOGICAL INFO: RTECS: TV1050000 LD50/LC50: N/A Carcinogenicity: Not listed 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: none 
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 CAS#8064-60-6 is not present on state lists from CA, MA, MN, FL. 
PA & NJ: CAS#8064-60-6 Primuline sodium salt
California Prop 65: 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:         Xn  WGK (Water Danger/Protection) CAS#8064-60-6:  No information available. 
Canada - DSL/NDSLCAS#8064-60-6 is not listed on Canada’s DSL List or NDSL list.. 
Canada – WHMIS:  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.