Product Name: 4,6-Di-Tert-Butyl-M-Cresol
Synonyms: Butylated m-cresol, DBMC, Antioxidant 2246
Chemical Formula: C15H24O
CAS Number: 128-37-0
Recommended Use: Industrial antioxidant, stabilizer for plastics, rubber, petroleum products
Supplier: Contact relevant distributor or manufacturer for regional details
Emergency Contact: Refer to national poison control or local emergency numbers
GHS Classification: Skin Irritant (Category 2), Eye Irritant (Category 2A), Aquatic Acute (Category 1), Aquatic Chronic (Category 1)
Label Elements: Warning symbol (exclamation mark, environment)
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, very toxic to aquatic life with long-lasting effects
Precautionary Statements: Avoid breathing dust, avoid contact with eyes and skin, prevent release to environment, wear appropriate protective equipment
Chemical Name: 4,6-Di-Tert-Butyl-M-Cresol
Common Name: DBMC
Concentration: >98%
Impurities: Toluene, traces of related cresols or t-butyl derivatives possible
Additives: None known
Inhalation: Move person to fresh air, support breathing as needed, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, wash affected skin with soap and water, seek medical attention for irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing, get medical help
Ingestion: Rinse mouth, give water to dilute, do not induce vomiting, consult physician or poison center immediately
Most Important Symptoms: Redness, irritation to eyes or skin, respiratory discomfort, headache if inhaled in large amounts
Suitable Extinguishing Media: Water spray (mist), dry chemical, carbon dioxide, foam
Unsuitable Extinguishing Media: Strong water jets may spread product
Specific Hazards: Produces toxic gases under combustion (carbon monoxide, carbon dioxide, hydrocarbons)
Protective Equipment for Fire-Fighters: Self-contained breathing apparatus, chemical-resistant suit
Advice: Evacuate area, prevent runoff to drains, remove ignition sources nearby
Personal Precautions: Ventilate area, avoid breathing dust, avoid contact with skin/eyes, use personal protective equipment
Environmental Precautions: Prevent product from entering drains or waterways, spill can harm aquatic organisms
Cleaning Methods: Scoop or sweep up carefully, place in labeled container for disposal, use inert absorbent material for residues, clean area with water and detergent
Disposal: Refer to local regulations, do not mix with household garbage
Handling: Use only with adequate ventilation, avoid formation of dust, wash hands after handling, do not eat or drink near product
Storage Conditions: Store in tightly closed original container, keep in cool, dry, well-ventilated place, protect from sunlight, incompatible with strong oxidizers and acids
Special Requirements: Store away from food and beverages, keep container labeled and properly secured
Occupational Limits: OSHA PEL not established, low vapor pressure reduces inhalation risk in typical settings
Engineering Controls: Use local exhaust ventilation, process enclosures where needed for dust control
Personal Protection: Protective gloves (nitrile or similar), safety goggles or face shield, suitable dust mask or respirator if exposure risk present
Hygiene Measures: Do not eat, drink, or smoke during use, wash hands thoroughly afterward, remove contaminated clothing promptly for cleaning
Appearance: White to off-white crystalline powder
Odor: Faint phenolic odor
pH: Not applicable
Melting Point: 48-55°C
Boiling Point: Decomposes before boiling
Flash Point: Around 120°C (248°F, closed cup)
Solubility: Insoluble in water, soluble in organic solvents like ethanol, acetone, benzene
Density: 1.05-1.15 g/cm³
Vapor Pressure: Negligible at room temperature
Partition Coefficient (Log Kow): Approx. 5.0
Viscosity: Not applicable (solid form)
Chemical Stability: Product remains stable under normal storage conditions
Reactivity: Reacts with strong oxidizing agents, possible hazard with strong acids/base
Thermal Decomposition: May release irritating or toxic fumes (carbon oxides) on decomposition
Hazardous Reactions: None reported under anticipated conditions
Incompatible Materials: Strong oxidizers, strong acids, halogens
Acute Toxicity: LD50 (rat, oral): >6000 mg/kg, considered to have low acute toxicity
Skin Corrosion/Irritation: Mild to moderate irritant
Serious Eye Damage/Irritation: May cause eye irritation, redness
Sensitization: Not classified as sensitizer
Chronic Effects: No known carcinogenicity, mutagenicity, or reproductive toxicity at common exposure levels
Target Organs: No data suggesting specific chronic organ toxicity at anticipated exposure
Symptoms of Overexposure: Skin or eye irritation, headache, nausea if large quantities ingested or inhaled in dust
Aquatic Toxicity: Very toxic to aquatic life, expected LC50 (fish): <1 mg/L
Persistence and Degradability: Not readily biodegradable, persists in environment
Bioaccumulation Potential: High potential due to log Kow around 5.0
Mobility in Soil: Low mobility, tends to adsorb strongly to organic material in soil
Other Effects: Avoid release to environment, accumulation can harm aquatic food chains
Waste Treatment Methods: Dispose of content and container as hazardous waste according to local, regional, national, and international regulations
Packaging Disposal: Empty containers should be triple rinsed and sent for proper disposal or recycling where permitted
Special Precautions: Avoid disposal down the drain or to surface water, do not incinerate with general refuse
Contaminated Materials: Treat as hazardous, keep separate from municipal waste streams
UN Number: 3077
Shipping Name: Environmentally Hazardous Substance, Solid, N.O.S. (contains 4,6-Di-Tert-Butyl-M-Cresol)
Transport Hazard Class: 9 (Miscellaneous dangerous substances and articles)
Packing Group: III
Marine Pollutant: Yes
Special Transport Notes: Keep containers tightly sealed and upright during transport, follow good storage/handling practices in transit
DOT, IMDG, IATA Regulations: Subject to environmental hazard labeling and documentation
US Regulations: Listed under TSCA, SARA Section 313 (not subject), not on California Proposition 65 list
EU Regulations: Listed in EINECS, requires hazard labeling under CLP, restricts release to water under REACH
Other Global Inventories: Included in AICS (Australia), DSL (Canada), ENCS (Japan), inventory checks recommended for each country
Workplace Requirements: Must provide training on handling, exposure controls, emergency procedures per OSHA, EU directives, or local equivalents
Label Requirements: GHS label elements, safety phrases, pictograms, hazard and precautionary statements
