PHENOL RED SODIUM SALT 

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:  Phenolsulfonphthalein sodium salt	CAS No.: 34487-61-1   E-C No.:205-609-7   Weight:  354.38g/mol 	Formula: C19H14O5S

2. HAZARDS : GHS Class:  Skin Irritation (Cat 2)   Specific target organ toxicity – single exposure (Cat 3) Respiratory System
Pictogram: 					
Signal Word: WARNING
Hazard Statement: H315: Causes skin irritation H335: May cause respiratory irritation
Precautionary Statement: P261: Avoid breathing dust/fume/gas/mist/vapors/spray. P264: Wash skin thoroughly after handling. P271: Use only outdoors or in a well-ventilated area. P280: Wear PPE. P302 + P352: If on Skin: Wash with plenty of soap and water P304+P340+P312: If Inhaled: Remove person to fresh air and keep comfortable for breathing. Call Poison Center/doctor if you feel unwell. P332+P313: If skin irritation occurs: Get medical advice. P362: Take off contaminated clothing and wash before reuse. P403+P233: Store in a well-ventilated place. Keep container tightly closed. P405: Store locked up. P501: Dispose of contents/container to an approved waste disposal plant. 

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. 
2.3: Other Hazards: none

3. COMPOSITION / INFO: 
Chemical									 CAS No.	 	Percent		
Sodium hydrogen 4,4’-(3H-2,1-benzoxiathiol-3-ylidene)bisphonolate S,S-dioxide	34487-61-1  	 90-100%                

4. FIRST AID: Eyes: Rinse 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.  Emits toxic fumes under fire.  Hazards: Carbon, sodium,  & sulfur oxides. Extinguishing: Use water spray, Carbon Dioxide, dry chem powder, or alcohol-resistant foam.

6. ACCIDENTAL RELEASE: Info:  Use proper PPE as indicated in Section 8. Spills/Leaks:  Clean up spills immediately, observing precautions in the Protective Equipment section.  Avoid generating dust.  Provide ventilation.
 
7. HANDLING & STORAGE: Handling:  Wash thoroughly after handling.  Avoid contact with eyes, skin, and clothing.  Avoid ingestion and inhalation.  Minimize dust generation and accumulation.
Storage: Store in a tightly closed container.  Store in a cool, dry, well-ventilated area away from incompatible substances.

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
Phenol Red Sodium salt  		              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 regulation in 29 CFR 1910.133 or European Standard EN 166. 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 29 CFR 1910.134 or European Standard EN 149.  Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

9. PHYSICAL:  Appearance: Bright red-dark red powder. Odor: Odorless. Melting Pt: 285˚C(545˚F) 

10. STABILITY & REACTIVITY:  Stability: Stable under ordinary conditions of use & storage. Avoid:  Incompatibles.  Incompatibilities:  Strong oxidizing agents Haz Decomp: see section 5

11. TOXICOLOGICAL INFO: RTECS: N/A   LD50/LC50:   N/A Carcinogenicity:  Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.  Other Studies:   May cause respiratory irritation                                                   

12. ECOLOGICAL INFO:   No info. 

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:  Not regulated

15. REGULATORY INFO: SARA  311/312: None
SARA Section 302 Extremely Hazardous Substances: None of the chemical in this product have a TPQ/RQ.
Section 313: No chemicals are reportable under Section 313.
STATE  CAS#34487-61-1   is not present on state lists from CA, MN, MA, FL. 
PA & NJ Right to Know: Sodium hydrogen 4,4’-(3H-2,1-benzoxiathiol-3-ylidene)bisphonolate S,S-dioxide CAS#34487-61-1 
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:  Not available.  WGK (Water Danger/Protection)CAS#143-74-8  No information available.
Canada – DSL/NDSL CAS#34487-61-1   is listed on Canada’s DSL List.
Canada – WHMIS  This product has a WHMIS classification of  Not Controlled.
CAS#34487-61-1   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.