Product Name: M-Cresyl Acetate
Synonyms: 3-Methylphenyl acetate, Meta-Cresyl acetate
Chemical Formula: C9H10O2
Molecular Weight: 150.18 g/mol
Recommended Use: Intermediate in chemical synthesis, solvent applications
Manufacturer Details: Supplier name, address, and emergency contacts available on full MSDS from manufacturer
CAS Number: 93-27-6
Emergency Phone Number: Chemtrec or local poison control
Classification: Flammable liquid, Acute toxic - oral and dermal, Eye and skin irritant
Signal Word: Danger
Hazard Statements: Causes skin and serious eye irritation, harmful if inhaled, harmful if swallowed, may cause respiratory irritation, flammable liquid and vapor
Pictograms: Flame, exclamation mark, health hazard
Precautionary Statements: Avoid breathing vapors, use personal protective equipment, keep container tightly closed, wash thoroughly after handling, store in well-ventilated place, keep away from heat/sparks/open flames, avoid all contact with eyes and skin
Chemical Name: M-Cresyl Acetate
CAS Number: 93-27-6
Concentration: >98% pure m-cresyl acetate
Impurities: Trace cresol isomers (<1%), acetic acid (<0.1%)
Inhalation: Remove person to fresh air, provide oxygen if breathing is difficult, seek immediate medical attention if symptoms of respiratory distress appear
Eye Contact: Rinse cautiously with water for several minutes, lift eyelids and continue rinsing, seek medical attention for persistent irritation or visual disturbance
Skin Contact: Remove contaminated clothing, wash affected skin thoroughly with soap and water, seek medical advice if redness or irritation continues
Ingestion: Rinse mouth with water, do not induce vomiting unless directed by medical personnel, seek medical advice immediately
Most Important Symptoms: Burning sensation, cough, shortness of breath, headache, skin or eye inflammation
Extinguishing Media: Use foam, carbon dioxide, dry chemical, water spray (do not use water jet directly on fire as it may spread\nflammable liquid)
Hazards from Combustion: Produces irritant vapors, acrid smoke, carbon monoxide, carbon dioxide
Protective Equipment: Self-contained breathing apparatus, protective clothing for firefighters, avoid inhalation of fumes
Specific Hazards: Vapors may form explosive mixtures with air, containers may explode when heated
Personal Precautions: Evacuate unnecessary personnel, use personal protective equipment including gloves, goggles, and respirators
Environmental Precautions: Prevent further leakage or spillage if safe to do so, do not let product enter drains or waterways
Methods for Cleanup: Absorb with inert material such as sand or vermiculite, collect and place in a chemical waste container for proper disposal, ventilate area thoroughly
Handling: Use only in well-ventilated areas, avoid inhalation, avoid skin and eye contact, keep away from heat, sparks, open flame, do not breathe vapor or aerosols
Storage: Store in corrosion-resistant, tightly closed containers, away from incompatible substances like strong oxidizers and acids, kept in a cool and dry place, shielded from sunlight and ignition sources
Specific Requirements: Use grounded, explosion-proof equipment, post “No Smoking” signs in storage area, inspect containers regularly for integrity and leaks
Exposure Limits: No established OSHA, ACGIH, or NIOSH exposure limits for m-cresyl acetate, but limit exposure as for similar aromatic solvents
Engineering Controls: Exhaust ventilation, local fume extraction, eye wash stations and emergency showers in work area
Personal Protective Equipment (PPE): Chemical-resistant gloves (nitrile or neoprene), safety goggles, flame-retardant protective clothing, respirators in case of insufficient ventilation, avoid direct skin contact at all times
Appearance: Colorless to pale yellow liquid
Odor: Characteristic aromatic, sweet odor
Odor Threshold: Low, detectable at low ppm
pH: Not available, not applicable
Melting Point: -10°C (14°F) approx
Boiling Point: 232 – 236°C (449 – 457°F)
Flash Point: 110°C (230°F) (Closed Cup)
Evaporation Rate: Slower than ether
Flammability: Flammable liquid
Vapor Pressure: 0.08 mmHg @ 20°C
Vapor Density: 4.2 (air = 1)
Relative Density: 1.08 g/cm³ @ 25°C
Solubility in Water: Moderately insoluble, soluble in organic solvents
Partition Coefficient: Log Pow 2.9 – 3.1
Auto-Ignition Temperature: 445°C (833°F)
Decomposition Temperature: Not determined
Viscosity: 1.3 mPa⋅s @ 25°C
Chemical Stability: Stable under standard conditions of temperature and pressure
Reactivity: May react vigorously with strong oxidizers
Incompatible Materials: Oxidizing agents, nitric acid, sulfuric acid, bases, strong acids
Hazardous Decomposition Products: Phenolic vapors, carbon oxides under fire or decomposition conditions
Polymerization: Not known to occur under normal handling
Acute Toxicity: LD50 (oral, rat): estimated 600–1200 mg/kg, LD50 (dermal, rabbit): estimated 2000–3000 mg/kg; inhalation toxicity data limited but inhaling vapor causes irritation
Skin Irritation: Causes redness, dermatitis possible with repeated contact
Eye Irritation: Causes substantial irritation, potential for conjunctivitis
Respiratory Effects: May cause wheezing, coughing, headache, dizziness
Chronic Effects: Prolonged exposure may affect liver, kidneys, central nervous system
Carcinogenicity: No classification as carcinogen by IARC, NTP, OSHA
Mutagenicity/Teratogenicity: Mutagenicity not well studied
Other Data: Sensitization has not been reported from standard studies on this compound
Toxicity: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Slowly biodegradable under environmental conditions
Bioaccumulation: Potential to bioaccumulate in aquatic species
Mobility in Soil: Moderate, binds to sediment and soil organic matter
Other Effects: Avoid contamination of natural water sources, treatment ponds, sewers
Waste Disposal: Treat as hazardous organic waste, incinerate in approved facility if possible, do not discharge to surface or ground water
Container Handling: Empty containers may retain hazardous residue, triple rinse and dispose of in accordance with local regulations
Regulatory Requirements: Methods and disposal must align with federal, state, and local laws, consult permits and waste codes
UN Number: UN 1993
Shipping Name: Flammable liquid, n.o.s. (contains m-cresyl acetate)
Transport Hazard Class: 3 (Flammable Liquid)
Packing Group: III
Environmental Hazards: Dangerous for the environment, required marine pollutant marking if shipped by sea
Special Precautions: Avoid heat sources, use suitable containers, check compatibility for tank trucks or drums, proper hazard labeling mandatory
SARA, Title III: Not listed as extremely hazardous, may require reporting if stored in large quantities
TSCA: Listed on the Toxic Substances Control Act inventory
REACH Registration: Registered with ECHA for industrial and laboratory use
OSHA: Classified as hazardous chemical
Canadian DSL: Included on Domestic Substances List
Other Global Inventories: Listed in AICS, ENCS, PICCS, KECI
Labeling Requirements: Must follow local, state, national, and international transport and hazard communication rules