1-ethenyl-2-methylbenzene

1-ethenyl-2-methylbenzene is an aromatic hydrocarbon compound with the molecular formula C9H10 and CAS number 611-15-4. This substance is a vinyl-substituted toluene derivative, also known as 2-methylstyrene or ortho-methylstyrene. With a molecular weight of 118.18 g/mol, it belongs to the styrene family of compounds and is classified as a flammable liquid with moderate toxicity and environmental concerns for aquatic life.

1-ethenyl-2-methylbenzene is a colorless to pale yellow liquid at room temperature with a characteristic aromatic odor. As an aromatic hydrocarbon, it has low solubility in water but is miscible with most organic solvents including alcohols, ethers, and hydrocarbons. The compound has a density lower than water and is volatile, contributing to its flammable nature and classification as a Class 3 dangerous good.

1-ethenyl-2-methylbenzene is primarily used as a monomer in polymer production and chemical synthesis. It serves as an intermediate in the manufacture of specialty plastics, resins, and copolymers. The compound is utilized in the production of adhesives, coatings, and synthetic rubber applications. Its vinyl group makes it valuable for polymerization reactions, while its aromatic structure provides desirable properties to the resulting polymer materials.

1-ethenyl-2-methylbenzene requires careful handling due to its Acute Tox. 4 classification and flammable nature. Wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas or under fume extraction to avoid inhalation. Keep away from heat sources, sparks, and open flames. Use non-sparking tools and ensure proper grounding of equipment to prevent static electricity buildup during transfer operations.

1-ethenyl-2-methylbenzene should be stored in a cool, dry, well-ventilated area away from heat sources and ignition sources. Use appropriate containers made of compatible materials and ensure they are properly sealed to prevent vapor release. Store away from oxidizing agents and strong acids. Maintain storage temperatures below 25°C and protect from direct sunlight. Implement appropriate fire prevention measures and ensure storage areas comply with local flammable liquid storage regulations.

In case of skin contact with 1-ethenyl-2-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 15-20 minutes and seek medical attention. If inhaled, move the person to fresh air and monitor for respiratory difficulties. In case of ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician if symptoms persist.

1-ethenyl-2-methylbenzene must be disposed of as hazardous waste according to local and national regulations. The substance cannot be disposed of in regular waste streams due to its flammable nature and environmental impact classification (Aquatic Chronic 2). Contact licensed hazardous waste disposal companies for proper treatment, which may include incineration at appropriate facilities or chemical treatment. Always follow waste classification codes and ensure proper documentation for disposal tracking.

1-ethenyl-2-methylbenzene is classified under ADR Class 3 (Flammable liquids), Packing Group III for transportation. This classification requires specific packaging, labeling, and documentation according to dangerous goods regulations. Vehicles must be equipped with appropriate safety equipment and drivers must hold valid dangerous goods training certificates. Use UN-approved containers and ensure proper placarding of transport vehicles with Class 3 hazard labels and environmental hazard markings.

1-ethenyl-2-methylbenzene is subject to various European chemical regulations including REACH registration requirements and CLP classification obligations. The substance is not currently listed as a Substance of Very High Concern (SVHC) under REACH. However, its classification as Acute Tox. 4 and Aquatic Chronic 2 requires compliance with relevant safety data sheet provisions, workplace exposure limits, and environmental protection measures as specified under European chemical legislation.

1-ethenyl-2-methylbenzene is available through OYSI, a specialized European distributor of technical chemicals. OYSI supplies this compound to industrial customers across Europe, ensuring proper documentation, safety data sheets, and regulatory compliance. As a professional chemical distributor, OYSI provides reliable supply chain management and technical support for customers requiring this aromatic monomer for their industrial applications and chemical synthesis processes.