1-methyl-4-nitrobenzene

1-methyl-4-nitrobenzene is an aromatic nitro compound with the molecular formula C7H7NO2 and CAS number 99-99-0. This organic chemical features a benzene ring substituted with a methyl group and a nitro group in para position. With a molecular weight of 137.14 g/mol, it serves as an important intermediate in chemical synthesis and industrial processes.

1-methyl-4-nitrobenzene is typically a pale yellow crystalline solid at room temperature with a characteristic aromatic odor. This nitroaromatic compound has limited solubility in water but dissolves well in organic solvents like ethanol, benzene, and ether. It exhibits stability under normal conditions but can be sensitive to strong reducing agents and high temperatures.

1-methyl-4-nitrobenzene is primarily used as an intermediate in the synthesis of dyes, pharmaceuticals, and agrochemicals. It serves as a precursor for producing various aniline derivatives through reduction processes. The compound finds applications in manufacturing pigments, rubber chemicals, and specialty organic compounds in industrial settings requiring controlled chemical transformations.

1-methyl-4-nitrobenzene requires careful handling due to its acute toxicity classification (Acute Tox. 3). Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection. Work in well-ventilated areas or under fume hoods, avoid skin contact and inhalation, and ensure emergency eyewash stations and safety showers are accessible during handling operations.

1-methyl-4-nitrobenzene should be stored in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Keep containers tightly sealed and protect from light and moisture. Store separately from strong reducing agents, alkali metals, and oxidizing substances to prevent dangerous reactions. Maintain storage temperatures below 25°C for optimal stability.

In case of skin contact with 1-methyl-4-nitrobenzene, immediately remove contaminated clothing and wash affected areas thoroughly with soap and water for at least 15 minutes. If inhaled, move to fresh air immediately. For eye contact, rinse with clean water for 15 minutes. Seek immediate medical attention for any exposure, as this substance can cause systemic toxicity.

1-methyl-4-nitrobenzene must be disposed of as hazardous waste according to local and national regulations. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Never discharge into sewers, waterways, or soil. Small quantities may require incineration at high temperatures in specialized facilities equipped with appropriate emission controls and scrubbing systems.

1-methyl-4-nitrobenzene is classified as ADR Class 6.1 (toxic substances), Packing Group II for transportation purposes. It requires appropriate hazardous goods packaging, labeling with GHS06, GHS08, and GHS09 pictograms, and proper shipping documentation. Transport must comply with dangerous goods regulations and be handled by trained personnel with appropriate emergency response procedures.

1-methyl-4-nitrobenzene is subject to REACH registration requirements and CLP classification regulations in Europe. It carries multiple hazard classifications including acute toxicity and environmental hazards, requiring appropriate safety data sheets and labeling. While not currently listed as an SVHC substance, it must comply with occupational exposure limits and environmental protection regulations in industrial use.

1-methyl-4-nitrobenzene is available through OYSI, a specialized European distributor of technical chemicals. As an established chemical supplier, OYSI provides this compound to industrial customers with proper documentation, safety data sheets, and regulatory compliance support. Contact OYSI directly for availability, specifications, and pricing information for your specific application requirements.