1-ethenyl-3-methylbenzene

1-ethenyl-3-methylbenzene is an aromatic hydrocarbon compound with the molecular formula C9H10 and a molecular weight of 118.18 g/mol. Also known as 3-methylstyrene or meta-methylstyrene, this organic compound features a benzene ring substituted with both a vinyl group (ethenyl) and a methyl group in the meta position. It belongs to the styrene family of compounds and serves as an important chemical intermediate in various industrial applications.

1-ethenyl-3-methylbenzene is a colorless to pale yellow liquid at room temperature with a characteristic aromatic odor typical of styrene derivatives. As a non-polar aromatic hydrocarbon, it exhibits limited solubility in water but readily dissolves in organic solvents such as alcohols, ethers, and hydrocarbons. The compound has a relatively low molecular weight and contains reactive vinyl functionality, making it susceptible to polymerization under certain conditions.

1-ethenyl-3-methylbenzene serves primarily as a chemical intermediate in polymer synthesis and specialty chemical manufacturing. It is commonly used in the production of copolymers, resins, and plastics where specific properties are required. The compound finds applications in the manufacture of adhesives, coatings, and modified polystyrene materials. Additionally, it serves as a building block for various fine chemicals and pharmaceutical intermediates in specialized industrial processes.

1-ethenyl-3-methylbenzene should be handled with standard organic solvent precautions including appropriate personal protective equipment. Use chemical-resistant gloves, safety glasses, and ensure adequate ventilation to prevent vapor accumulation. Avoid contact with skin, eyes, and respiratory system. Handle away from heat sources, sparks, and open flames due to its flammable nature. Implement proper grounding procedures during transfer operations to prevent static electricity buildup and potential ignition.

1-ethenyl-3-methylbenzene should be stored in a cool, dry, well-ventilated area away from heat sources, direct sunlight, and ignition sources. Keep containers tightly sealed and store in original packaging or compatible containers made of appropriate materials. Due to its potential for polymerization, avoid exposure to elevated temperatures and consider adding stabilizers if required. Store separately from strong oxidizers, acids, and other incompatible materials following standard chemical segregation practices.

In case of skin contact with 1-ethenyl-3-methylbenzene, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for 15 minutes and seek medical attention. If inhaled, move to fresh air immediately. In case of ingestion, do not induce vomiting and seek immediate medical attention. Always consult safety data sheets for specific emergency procedures and contact emergency services if necessary.

1-ethenyl-3-methylbenzene must be disposed of in accordance with local, national, and European waste regulations as a hazardous chemical waste. Contact licensed waste disposal companies specialized in organic chemical waste handling. The material should not be discharged into sewers, water bodies, or regular waste streams. Contaminated packaging and materials require similar disposal treatment. Always consult current waste classification codes and regulations in your specific jurisdiction before disposal.

1-ethenyl-3-methylbenzene is classified under ADR Class 3 (Flammable Liquids), Packing Group III, indicating it requires appropriate hazardous materials transportation procedures. Shipments must comply with ADR regulations including proper packaging, labeling, and documentation. Use UN-approved containers and ensure proper placarding of transport vehicles. Drivers must have appropriate ADR training and certification. Follow specific loading, segregation, and emergency response requirements as outlined in current ADR transportation regulations.

1-ethenyl-3-methylbenzene is subject to standard European chemical regulations including REACH registration requirements for import and manufacture above tonnage thresholds. The substance is not classified as a Substance of Very High Concern (SVHC) and does not appear on the REACH candidate list. Standard CLP classification and labeling requirements apply. Users must comply with occupational exposure limits, environmental discharge regulations, and maintain appropriate safety data sheets according to current European chemical safety legislation.

1-ethenyl-3-methylbenzene is available through OYSI, a specialized European distributor of technical chemicals and industrial intermediates. OYSI provides reliable supply chains across Europe with appropriate documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures proper packaging, transportation, and technical support for industrial customers requiring this specialty aromatic compound for their manufacturing processes and research applications.