Product Name: 4-Methylcatechol
Chemical Formula: C7H8O2
Synonyms: 4-Methyl-1,2-benzenediol, 4-Methylpyrocatechol
CAS Number: 452-86-8
Recommended Use: Laboratory and industrial chemical applications
Supplier Details: Manufacturer and distributor contact information available on request
Emergency Contact: Local poison control center and emergency response lines
Classification: Acute toxicity (oral, skin), skin and eye irritation, environmental hazard
Signal Word: Danger
Hazard Statements: Toxic if swallowed or in contact with skin, causes severe skin and eye irritation, harmful to aquatic life with long lasting effects
Pictograms: Skull and crossbones, exclamation mark, aquatic environment
Precautionary Statements: Avoid breathing dust, wear protective gloves and eye protection, wash skin thoroughly after handling, avoid release to the environment
Chemical Name: 4-Methylcatechol
Purity: ≥98%
Impurities: Trace levels of related phenolic compounds
Hazardous Components: 4-Methylcatechol listed as the main hazardous constituent
Inhalation: Move to fresh air, keep airways open, seek medical attention if symptoms arise
Skin Contact: Wash thoroughly with water and mild soap for at least 15 minutes, remove contaminated clothing, immediate medical attention required if irritation develops
Eye Contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present and easy to do, medical evaluation needed
Ingestion: Rinse mouth, do not induce vomiting, give water only if victim is conscious, contact a physician or poison control center immediately
Acute Symptoms: Headache, nausea, skin redness and pain, possible drowsiness or confusion
Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Media: High-pressure water jets
Combustion Products: Toxic fumes of carbon monoxide, carbon dioxide, possible phenolic vapors
Special Protective Equipment: Full protective gear and self-contained breathing apparatus
Fire/Explosion Hazards: Dust accumulations may present explosion risk, product combustible
Advice for Firefighters: Isolate area, prevent entry, cool containers exposed to fire with water spray
Personal Precautions: Avoid breathing dust, use gloves, goggles, protective clothing, adequate ventilation recommended
Spill Response: Sweep up and shovel into suitable container, avoid dust formation, wipe remaining material with inert absorbent
Environmental Precautions: Prevent spill from entering drains, surface or ground water channels
Disposal of Material: Dispose of according to local and national regulations for hazardous phenolic chemicals
Handling: Use in chemically resistant area with local exhaust, wear suitable protective gear, keep away from food or drink
Storage: Store in tightly closed, clearly labeled containers in a cool, dry, well-ventilated space, segregated from oxidizers and incompatible substances
Incompatibles: Strong oxidizing agents, bases, acids
Hygiene Measures: Avoid contact with skin, eyes, clothing; wash thoroughly after handling
Exposure Limits: No established occupational exposure limits, minimize exposure to dust and vapors
Engineering Controls: Use local exhaust ventilation, safety showers, and eye wash stations recommended
Respiratory Protection: NIOSH-approved respirator under insufficient ventilation
Hand Protection: Chemical-resistant gloves (nitrile, neoprene)
Eye Protection: Chemical safety goggles and face shields
Skin Protection: Lab coat, apron, closed footwear
Environmental Controls: Prevent release to the environment, use containment if risk of pollution
Appearance: Crystalline powder or granules
Color: White to beige
Odor: Faint phenolic scent
Melting Point: 104–108°C
Boiling Point: 302°C (estimated, decomposes)
Solubility: Readily soluble in water and ethanol
pH: Not available for solid; mildly acidic in aqueous solution
Vapor Pressure: Low at room temperature
Partition Coefficient (log Kow): Around 1.1
Flash Point: Not readily available; handle as combustible
Chemical Stability: Stable under standard temperature and pressure
Reactivity: Reacts with strong oxidizing agents, forms potentially hazardous byproducts
Decomposition Products: Produces carbon oxides and phenolic fumes if heated to decomposition
Polymerization: Not expected under normal handling
Incompatible Materials: Avoid contact with alkalis, acids, and oxidizing chemicals
Acute Toxicity: Harmful by oral, dermal, or inhalation route; LD50 (oral, rat) estimated at 200-500 mg/kg
Skin and Eye Irritation: Causes severe irritation, prolonged contact intensifies risk
Inhalation Effects: Dust or fumes may irritate respiratory tract
Chronic Effects: Repeated exposure may cause organ damage, risk of sensitization
Carcinogenicity: Not rated as carcinogenic by IARC, NTP, OSHA
Signs and Symptoms of Exposure: Nausea, headache, dizziness, skin redness, eye discomfort
Mutagenicity / Reproductive Toxicity: Not thoroughly investigated, use caution and minimize exposure
Toxicity to Aquatic Life: Harmful, fish and invertebrate LC50 in low mg/l range
Persistence and Degradability: Readily biodegradable in soil and water, subject to rapid degradation by microbes
Bioaccumulative Potential: Moderately low, log Kow suggests minimal risk of bioaccumulation
Mobility in Soil: Water solubility results in moderate mobility through soil
Other Environmental Hazards: Prevent release to waterways to minimize impact on aquatic environments
Disposal Methods: Incinerate or dispose of in compliance with local, state, federal regulations for phenolic waste
Container Disposal: Decontaminate and recycle or dispose as hazardous waste
Precautions: Do not release into drains, consult hazardous waste disposal service for safe removal
Unclean Packaging: Must be handled like product waste, triple rinse with suitable solvent before disposal or recycling
UN/NA Number: UN3077 (as environmentally hazardous substance, solid, n.o.s.)
Proper Shipping Name: Environmentally hazardous solid, n.o.s. (contains 4-Methylcatechol)
Hazard Class: 9
Packing Group: III
Label Requirements: Environment, miscellaneous dangerous goods
Special Precautions: Protect from physical damage, moisture, and ignition sources during transit
Other Details: Comply with all regional, national, and international regulations during shipping
TSCA Status: Listed on the US Toxic Substances Control Act (TSCA) inventory
EU REACH Status: Pre-registered, subject to restrictions as a hazardous compound
OSHA: Covered by worker safety laws for hazardous chemicals
SARA Title III: May be regulated under Sections 311/312 as an immediate health hazard
Canadian DSL: Listed
WHMIS Classification: D2B (toxic material causing other toxic effects)
Labeling Requirements: Follow workplace and container label rules, include hazard statements and precautionary pictograms
