META-CRESOL PURPLE FREE ACID

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: m-Cresolsulfonephthalein CAS No: 2303-01-7. EC-No: 218-960-6  Weight: 382.42 Formula : C21H18O5S

2. HAZARDS ID: GHS:  Not a hazardous substance.
HMIS Classification: Health hazard:  0   Flammability:  0   Physical Hazard:  0                                                     
NFPA Rating:  Health Hazard:  0  Fire Hazard:    0   Reactivity Hazard:  0
2.3: Other Hazards: none

3.COMPOSITION/ INFO: 
Chemical Name         			CAS No. 		Percent		Hazardous
Meta-Cresol Purple   Free acid                                  2303-01-7                  ~90%                              No 

4. FIRST AID: Eyes: Flush eyes with plenty of water as precaution.  Skin: Flush skin with plenty of soap and water. Ingestion: If victim is conscious and alert, give water to rinse mouth.  Never give anything by mouth to an unconscious person.  Do NOT induce vomiting. Inhalation: Remove to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Physician: Treat symptomatically. 

5. FIREFIGHTING: 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. Explosion Limits: N/A Extinguishing: Use water spray, dry chem, carbon dioxide, or alcohol-resistant foam. Hazard:  Carbon/Sulphur oxides. Flash: N/A  Auto-ignition Temp: N/A 

6. ACCIDENTAL RELEASE: Info: Use proper PPE as indicated in Section 8.
Spill/Leaks: Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. 

7.  HANDLING & STORAGE: Handling: Wash thoroughly after handling. Use only in a well-ventilated area. Avoid contact with eyes, skin, and clothing.  Avoid ingestion/inhalation. Storage: Store in a cool, dry place. Keep container closed when not in use. 

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 Name			ACGIH			NIOSH		OSHA-FINAL/Vacated PELS
Meta-Cresol Purple F/A		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 29 CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirators when necessary. 

9.  PHYSICAL & CHEM: Appearance: Dark green to olive-green powder.  

10. STABILITY & REACTIVITY: Stability: Stable under normal temp/pressures. 
Avoid: N/A. Incompatibilities: Strong oxidizing agents. Hazardous Decomp: see section 5

11. TOXICOLOGICAL INFO: RTECS#: unlisted. LD50/LC50: Not available
Carcinogenicity: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.

12. ECOLOGICAL INFO: Environmental Fate & Toxicity:  No data available.

13.  DISPOSAL CONSIDERATIONS: Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. U.S. 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 information.
RCRA P-Series: None listed.  RCRA U-Series: None listed. 

14.  TRANSPORT INFO: Not dangerous goods.

15.  REGULATORY INFO: SARA 311/312 Hazards:  No SARA Hazards
Section 302 (RQ & TPQ):   None of the chemicals in this material have an RQ or TPQ.
Section 313:  No chemicals are reportable under Section 313.
State: CAS# 2303-01-7 is not present on state lists from CA, MN, MA, Fl.
PA & NJ Right to Know:  m-Cresol purple            CAS#2303-01-7 
California No Significant Risk Level: None of the chemicals in this product are listed. 

EUROPEAN/INTERNATIONAL REGULATIONS European Labeling in Accordance with EC Directives 
Hazard Symbols: Not available. WGK (Water Danger/Protection) CAS# 2303-01-7: No information available. 
Canada - DSL/NDSL CAS# 2303-01-7 is listed on Canada’s DSL List. 
Canada - WHMIS This product has a WHMIS classification of “Not Controlled...”    

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.