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Product Name: 4-Vinyl-m-Xylene
Synonyms: 1-Ethyl-3-methyl-4-vinylbenzene
CAS Number: 7381-43-9
Recommended Use: Chemical intermediate, laboratory reagent
Supplier: Chemical manufacturer or distributor details on product label
Emergency Contact Number: See product-specific safety sheet or national poison center
Classification: Flammable liquid (Category 3), Skin irritation (Category 2), Eye irritation (Category 2A), Specific target organ toxicity - single exposure (Category 3, respiratory system)
Label Elements: Signal word: Warning, Pictograms: Flame, Exclamation mark
Hazard Statements: May cause respiratory irritation, causes skin and eye irritation, flammable liquid and vapor
Precautionary Statements: Keep away from heat or sparks, avoid inhalation of vapor, use protective equipment, wash skin after handling, store in a well-ventilated place
Chemical Name: 4-Vinyl-m-Xylene
CAS Number: 7381-43-9
Concentration: Greater than 98% purity reported for most laboratory, manufacturing, and supply purposes
Impurities: Trace levels of related alkyl benzenes, not significant for main hazard profile
Inhalation: Move person to fresh air immediately; keep comfortable and monitor for persistent symptoms, seek medical attention if breathing problems develop
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water and mild soap, seek further care for persistent reactions
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy, continue rinsing, seek medical advice if irritation remains
Ingestion: Rinse mouth, do not induce vomiting, see a doctor for further assessment
Suitable Extinguishing Media: Use water spray, dry chemical, foam, or carbon dioxide
Unsuitable Extinguishing Media: Do not use direct water jet as it may spread the fire
Specific Hazards: Vapors may form explosive mixtures with air, hazardous combustion products may include carbon oxides
Protective Equipment and Precautions: Wear full protective gear, use self-contained breathing apparatus, keep containers cool by spraying with water, evacuate area if unsafe
Personal Precautions: Evacuate area, keep away from ignition sources, avoid contact with skin, eyes, and clothing, ventilate area
Environmental Precautions: Prevent entry into sewers, surface water, and soil
Methods for Clean-Up: Absorb with inert material like sand or vermiculite, collect in suitable containers, dispose using standard chemical waste procedures, decontaminate area after cleaning
Handling: Use proper ventilation, avoid breathing vapor, prevent static discharge, avoid all unnecessary exposure, do not handle near sources of ignition
Storage: Store in tightly closed containers, away from oxidizers and open flames, in a cool, dry, well-ventilated space, keep container tightly sealed
Exposure Limits: No established occupational exposure limits for this compound, minimize exposure using engineering controls
Engineering Controls: Use local exhaust ventilation, work with material in closed systems or fume hood
Personal Protective Equipment: Wear chemical-resistant gloves (nitrile or neoprene), safety glasses or goggles, protective clothing, use a NIOSH-approved respirator if airborne exposure risk exists
Appearance: Clear to pale yellow liquid
Odor: Aromatic, sweet-like hydrocarbon odor
Odor Threshold: Not determined
pH: Not applicable
Melting Point/Freezing Point: Not established
Boiling Point: 209-211°C (approximate)
Flash Point: Around 94°C (closed cup)
Evaporation Rate: Not determined
Flammability: Flammable liquid
Solubility: Very low solubility in water
Vapor Pressure: Low, but may increase with temperature
Density: 0.92-0.94 g/cm³ at 25°C
Partition Coefficient (n-octanol/water): Not established
Viscosity: Not determined
Chemical Stability: Stable under standard ambient conditions
Conditions to Avoid: Exposure to flame, sparks, hot surfaces, extreme heat
Materials to Avoid: Strong oxidizers such as peroxides, acids, bases can cause hazardous reactions
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, other hazardous fumes from incomplete combustion may form
Hazardous Polymerization: May occur under uncontrolled or high-temperature conditions, especially in presence of free radical initiators
Acute Toxicity: Data limited, structurally similar chemicals show low to moderate toxicity through inhalation, ingestion, dermal routes
Skin Corrosion/Irritation: May cause moderate skin irritation with prolonged contact
Serious Eye Damage/Irritation: May cause irritation, redness, pain upon contact
Respiratory Sensitization: Inhalation of high concentrations can cause dizziness and throat irritation
Chronic Effects: No chronic toxicity data available, avoid repeated or prolonged exposure
Ecotoxicity: Material is harmful to aquatic life, acute aquatic toxicity expected due to hydrocarbon content
Persistence and Degradability: Not readily biodegradable, may persist in environment
Bioaccumulative Potential: Potential for accumulation in aquatic organisms based on structure
Mobility in Soil: Low water solubility, moderate mobility expected in soil due to hydrophobic character
Other Adverse Effects: Avoid release to the environment to prevent long-term impact on ecosystems
Waste Treatment Methods: Incinerate in supervised chemical waste facility
Contaminated Packaging: Triple rinse, then dispose of according to local hazardous waste regulations
Disposal Precautions: Do not allow chemical or container to contaminate water sources, comply with all local, national, and international regulations regarding hazardous waste
UN Number: 1993
UN Proper Shipping Name: Flammable Liquid, N.O.S. (contains 4-Vinyl-m-Xylene)
Transport Hazard Class: 3 (Flammable liquids)
Packing Group: III
Hazard Labels: Flammable liquid mark required
Special Precautions: Make sure packages are secure during transport, keep away from heat and open flames, follow carrier and national regulations
TSCA: Listed on the US Toxic Substances Control Act Inventory
REACH: May require registration in Europe, check registration status with supplier
SARA Title III: Not flagged as extremely hazardous, but considered hazardous under OSHA
Canadian DSL: Check for status if handling, subject to local regulations
Other Global Inventories: Review compliance status in each relevant jurisdiction before import, distribution, or commercial use
