METANIL YELLOW
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:  Acid Yellow 36, 3-(4-Anilinophenylazo)benzenesulfonic acid 
CAS No.: 587-98-4    E-C No.:209-608-2	Weight:  375.38g/mol 	Formula: C18H14N3NaO3S

2. HAZARDS: GHS Class: Acute aquatic hazard (Cat 2)   Serious Eye damage (Cate 1) Chronic aquatic hazard (Cat 3)
Pictogram: 					        
Signal Word:         DANGER
HAZARD STATEMENT: H318: Causes serious eye damage.   H401: Toxic to aquatic life. 
H412: Harmful to aquatic life with long-lasting effects.	
PRECAUTIONARY STATEMENT: P273: Avoid release to the environment.  P280: Wear eye & face protection.	
P305 + P351 +P338 + P310: If in Eyes: Rinse cautiously with water for several minutes. Remove contact lenses if present &easy to do. Continue rinsing. Immediately call a doctor. P501: Dispose of contents/container to an approved waste disposal plant.

HMIS Classification: Health hazard  2, Flammability   0,  Physical hazards   0			
NFPA Rating: Health hazard  2, 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. 
2.3: Other Hazards: none

3. COMPOSITION / INFO: 
Chemical Name			 CAS No.	 	Percent		
Metanil Yellow 	              		 587-98-4                   90-100%                  

4. FIRST AID: Eyes: Rinse immediately with plenty of water for 15 min and seek medical advice. Skin: Rinse with plenty of soap & water and seek medical advice. Ingestion: Do not induce vomiting without medical advice. Rinse with water. Consult physician. Inhalation: Move to fresh air.  Consult a physician. 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. Hazards:  Carbon, Nitrogen, Sulphur & sodium oxides. Extinguishing: Use water spray, dry chem, carbon dioxide, or alcohol-resistant foam. 
Flash Pt: N/A. Auto-ignition Temp: N/A. Explosion Limits: N/A 

6. ACCIDENTAL RELEASE: Info: Use proper PPE as indicated in Sec 8. Spills/Leaks: Sweep up, place into a suitable container for disposal. Avoid dusty conditions. Provide ventilation.  

7. HANDLING & STORAGE: Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. 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 a safety shower. Use adequate ventilation to keep airborne concentrations low. 
Chemical             	 ACGIH                   NIOSH                          OSHA- Final / Vacated PELs 
Metanil Yellow   	 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 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: State: Crystalline powder. Appearance: Orange. 

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

11. TOXICOLOGICAL INFO: RTECS#: DB7329500.  LD50/LC50: Oral & Dermal, Rat: LD50 = >2,000 mg/kg; 
Carcinogenicity: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA. 

12. ECOLOGICAL INFO:  LC50- Guppy – 10-100 mg/l-96h ---- Not Readily biodegradable.

13. DISPOSAL CONSIDERATIONS:  Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPS 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 (RQ) & Section 302 (TPQ) None of the chemicals in this material/product have an RQ or TPQ. 
Section 313 No chemicals are reportable under Section 313. 
STATE : CAS# 587-98-4 is not present on state lists from CA, MN, MA, FL. 
PA & NJ Right to Know: Sodium 3-(p-anilinophenylazo)benzenesulphonate  CAS#587-98-4
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# 587-98-4: 1
Canada - DSL/NDSL CAS# 587-98-4 is listed on Canada’s DSL 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.