QUERCETIN  DIHYDRATE

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: 3,3’,4’,5,7-Pentahydroxyflavone Dihydrate, 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one dehydrate; Meletin; Sophoretin. CAS No.:  6151-25-3     Weight:  338.27 Formula:  C15H10O7*2H2O

2.HAZARDS ID: GHS Classification:     Acute toxicity, Oral (Cat 3)
Pictogram:					 			
Signal Word:         DANGER
Hazard statement(s):	H301 Toxic if swallowed.
Precautionary statement(s): P264: Wash skin thoroughly after handling.	P330: Rinse mouth.
P270: Do not drink, eat, smoke, when using this product 	P405: Store locked up. P301 + P310 If swallowed: Immediately call a POISON CENTER or doctor/ physician.       P501: Dispose of contents/container to an approved waste disposal plant.

Potential Health: Eye: Risk of serious damage to eyes.	Skin: Harmful in contact with skin. 
Ingestion: Harmful if swallowed. 		Inhalation: Harmful by inhalation. 
2.3: Other Hazards: none

3. COMPOSITION, INFO ON INGREDIENTS:
Chemical Name 			CAS No.			Percent		Hazardous
Quercetin Dihydrate		6151-25-3		 90-100%		      Yes

4. FIRST AID: Eyes: Rinse immediately as a precaution. Skin: Rinse with plenty of soap & water and seek medical advice. Ingestion: Do not induce vomiting without medical advice. Rinse with 2 cups at most of water. Consult physician. If medical care not available within 1 hr. (& person is wide awake & fully conscious) induce vomiting, administer activated charcoal (20-40g in a 10% slurry) & consult doctor asap. Inhalation: Move to fresh air.  Consult a physician. Physician: Treat symptomatically and supportively. 

5. FIRE FIGHTING: Info: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH & full PPE.. Irritating and highly toxic gases may be generated by thermal decomposition or combustion.  Runoff from fire control or dilution water may cause pollution. Extinguishing: Use water spray, dry chemical, carbon dioxide, or alcohol-resistant foam. Flash Pt: N/A   Auto-ignition Temp:  N/A   Combustion products: Carbon oxides combustible.

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, observe precautions in the Protective Equipment section. Avoid generating dusty conditions. Provide ventilation. 

7. HANDLING & STORAGE:  Handling: Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. 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: 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 PEL’s
Quercetin Dihydrate			None listed	None listed	None listed
OSHA Vacated PELs: Quercetin Dihydrate: No OSHA Vacated PELs are listed for this chemical. 

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 thick 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: Bright yellow to greenish crystalline powder.
Odor: Characteristic Melting Pt: 315°C (599°F) 

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

11. TOXICOLOGICAL INFO: RTECS: LK8950000 LD50:  oral toxicity (LD50):  159 mg/kg (Mouse)
Carcinogenicity: CAS#6151-25-3:Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA. 

12. ECOLOGICAL INFO: Fate: Not 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 INFO: 
DOT: UN 2811, Toxic solids, organic, n.o.s. (3,3’,4’,5,7-Pentahydroxyflavone dihydrate), 6.1, III, ERG 154
IMDG: UN 2811, TOXIC SOLIDS, ORGANIC, N.O.S. (3,3’,4’,5,7-Pentahydroxyflavone dihydrate), 6.1, III 
IATA: UN 2811, Toxic solid, organic, n.o.s, (3,3’,4’,5,7-Pentahydroxyflavone dihydrate), 6.1, III

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 : CAS# 6151-25-3 is not present on state lists from CA, MN, MA, FL. 
PA / NJ Right to Know:  3,3’,4’,5,7-Pentahydroxyflavone dihydrate  CAS#6151-25-3 Rev. 2/16/1993
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 
Hazardous Symbols:  T	WGK (Water Danger/Protection): CAS# 6151-25-3:  No information available.
Canada - DSL/NDSL: CAS#6151-25-3: is not listed on Canada’s DSL List or NDSL List.
Canada – WHMIS:   WHMIS classification D1B, D2A:  Material causing immediate and serious toxic effects (TOXIC).
CAS# 6151-25-3 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.