Product Name: 2,2'-Methylenebis(6-Tert-Butyl-P-Cresol)
Chemical Formula: C23H32O2
Synonyms: MBPC, Antioxidant 2246, 6,6'-Di-tert-butyl-4,4'-methylenedim-cresol
CAS Number: 119-47-1
Recommended Use: Antioxidant in polymers, rubbers, lubricants
Supplier: Contact local distributor or manufacturer
Contact Information: See local supplier safety coordinator
Emergency Phone: Local poison center or emergency services
Classification: Not classified as hazardous under GHS criteria
Physical Hazards: Slight combustible dust
Health Hazards: May cause skin and eye irritation with prolonged contact
Environmental Hazards: Chronic hazard for aquatic life, bioaccumulation possible
Signal Word: None designated
Pictograms: No GHS pictograms
Hazard Statements: May cause mild irritation, avoid ingestion and prolonged inhalation
Precautionary Statements: Wear appropriate protective gear, avoid unprotected release to environment
Chemical Name: 2,2'-Methylenebis(6-Tert-Butyl-P-Cresol)
CAS Number: 119-47-1
Concentration: >99% pure
Impurities: Typical impurities include trace organic residues (<1%)
Additives: None reported
General Advice: Get fresh air, rinse skin and eyes thoroughly if contacted, consult doctor if symptoms persist
Inhalation: Move person to clean air, monitor breathing, seek medical attention for irritation or persistent discomfort
Skin Contact: Remove contaminated clothing, wash area with soap and water, contact physician if rash develops
Eye Contact: Flush with water for at least 15 minutes, remove contact lenses, seek medical assessment if redness remains
Ingestion: Rinse mouth thoroughly, do not induce vomiting, consult doctor for observation, keep packaging for reference
Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, foam, water spray
Unsuitable Extinguishing Media: High pressure water jets, direct water streams
Special Hazards: Incomplete combustion releases toxic fumes including carbon monoxide and oxides of carbon
Fire-Fighter Protection: Wear full protective equipment and self-contained breathing apparatus
Explosion Data: Dust may form explosive mixtures in air under certain conditions
Other Advice: Prevent runoff entering waterways, cool fire-exposed containers with water mist
Personal Precautions: Avoid breathing dust, ventilate area, wear gloves and suitable respiratory protection
Environmental Precautions: Prevent entry into sewers, surface or groundwater, collect spillage promptly
Small Spill Response: Carefully sweep up and place in container for disposal, minimize dust
Large Spill Response: Evacuate area, contain spill with inert absorbent, collect and transfer to waste container
Decontamination: Wash surfaces with water and detergent, ventilate space until dry
Disposal: Refer to local hazardous waste regulations
Handling: Handle in well-ventilated areas, avoid dust generation, wear personal protective gear, do not eat or smoke nearby
Safe Practices: Use tools to prevent direct contact, avoid spills, keep container tightly closed
Storage Conditions: Store in cool, dry area away from sunlight, acids, oxidizing agents and foodstuffs
Incompatible Materials: Strong oxidizers, acids
Special Precautions: Prevent static discharge, ground all transfer and storage equipment
Exposure Limits: No specific occupational exposure limits established
Engineering Controls: Use local exhaust or general ventilation
Personal Protection: Chemical-resistant gloves, protective eyewear (goggles or face shield), long-sleeve clothing
Respiratory Protection: NIOSH-approved particulate respirators if airborne dust becomes a concern
Hygiene Measures: Wash hands after use, prevent skin and eye exposure, avoid ingestion
Contaminated Items: Launder before reuse
Appearance: White to off-white crystalline powder
Odor: Mild aromatic
Odor Threshold: Not determined
pH: Not applicable (insoluble in water)
Melting Point: 157-164°C
Boiling Point: Not available (decomposes before boiling)
Flash Point: >210°C
Evaporation Rate: Negligible
Flammability: Dust may be combustible
Vapor Pressure: Negligible at 25°C
Solubility: Insoluble in water, soluble in organics like acetone and ethanol
Partition Coefficient (log Kow): 5.8 (high potential for bioaccumulation)
Decomposition Temperature: Above 200°C
Viscosity: Not applicable
Other: No explosive properties under normal handling
Stability: Stable under recommended storage and handling, retains properties over time
Hazardous Reactions: May react with strong oxidizers leading to possible fire hazard
Conditions to Avoid: Heat, open flame, static discharge, dust accumulation
Incompatible Materials: Acids, oxidizing agents
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, trace hydrocarbon fumes
Polymerization: Will not occur
Acute Toxicity: Low toxicity by oral, dermal and inhalation routes, oral LD50 (rat) > 5000 mg/kg
Skin: May cause mild, temporary irritation after repeated contact
Eyes: Can cause mild irritation with redness or watering
Inhalation: Dust may cause respiratory discomfort
Sensitization: Not known to cause
Chronic Effects: No evidence of carcinogenicity or mutagenicity in animal studies
Target Organs: No known organ-specific toxicity
Ecotoxicity: Harmful to aquatic life, especially with long-term exposure
Aquatic Toxicity: EC50 (algae, daphnia) typically greater than 1 mg/L, chronic aquatic exposure not recommended
Persistence and Degradability: Low, not readily biodegradable in environment
Bioaccumulation: Potential exists, due to log Kow >5
Mobility in Soil: Expected to have low mobility, binds to sediment and organic matter
Other Concerns: Avoid release to environment, especially waterways
Waste Disposal: Treat as hazardous chemical waste in line with local, state and federal regulations
Contaminated Packaging: Empty containers should be triple rinsed, then recycled or managed as hazardous waste
Disposal Methods: Incineration preferred if permitted, landfilling is permitted based on compliance with regulatory standards
Precautions: Avoid uncontrolled discharge to environment
UN Number: Not regulated for transport under ADR, IMDG, IATA
Proper Shipping Name: Not classified
Hazard Class: Not applicable
Packing Group: Not applicable
Environmental Hazards: Avoid cargo contact with aquatic supplies, minimize spillage
Special Precautions: Secure containers upright, label clearly, keep away from oxidizers
Transport Modes: Road, rail, sea, air all permitted under general chemical goods guidelines
TSCA: Listed
REACH: Pre-registered in EU
DSL/NDSL: Listed
OSHA: Not classified as hazardous
SARA Title III: Not listed
Chemical Inventory Status: Covered by most international inventories
Other National/International Regulations: Local safety, occupational health, and waste rules apply, safety data sheet available upon request, ensure compliance with labeling and user notification for workplace safety practices
