N-methylaniline

N-methylaniline is an organic aromatic amine compound with the chemical formula C7H9N and CAS number 100-61-8. It consists of an aniline molecule where one hydrogen atom on the amino group has been replaced by a methyl group. With a molecular weight of 107.15 g/mol, this substance is classified as a toxic chemical requiring careful handling due to its acute toxicity and environmental hazards.

N-methylaniline is typically a colorless to pale yellow liquid at room temperature with a characteristic amine-like odor. It has limited solubility in water but is soluble in organic solvents such as alcohols and ethers. The compound is sensitive to light and air, which can cause oxidation and color changes. Its aromatic amine structure makes it reactive toward acids and oxidizing agents.

N-methylaniline serves as an important intermediate in the chemical industry, primarily for manufacturing dyes, pigments, and pharmaceutical compounds. It is used in the synthesis of various organic chemicals including antioxidants, accelerators for rubber vulcanization, and specialty chemicals. The compound also finds application in analytical chemistry as a reagent and in research laboratories for organic synthesis reactions.

N-methylaniline requires strict safety measures due to its Acute Tox. 3 classification and DANGER signal word. Always wear appropriate PPE including chemical-resistant gloves, safety goggles, and respiratory protection in well-ventilated areas. Avoid skin contact and inhalation as the substance can be absorbed through skin and cause systemic toxicity. Work in fume hoods and ensure emergency shower and eyewash stations are accessible.

N-methylaniline should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep away from incompatible materials such as strong oxidizers, acids, and bases. Storage areas must be equipped with appropriate containment systems and comply with local regulations for toxic substances. Maintain temperatures below recommended limits to prevent decomposition.

Immediate action is crucial due to N-methylaniline's acute toxicity. For skin contact, remove contaminated clothing and wash thoroughly with soap and water for at least 15 minutes. In case of eye contact, rinse immediately with plenty of water for 15 minutes. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek medical attention immediately. Always consult safety data sheets for detailed first aid measures.

N-methylaniline disposal must comply with local and European waste regulations due to its toxic and environmentally hazardous properties (Aquatic Acute 1, Aquatic Chronic 1). The substance should be treated as hazardous waste and disposed of through licensed waste management facilities. Never discharge into sewers, waterways, or soil. Incineration at authorized high-temperature facilities is typically the preferred disposal method for this type of aromatic amine.

N-methylaniline is classified under ADR as Class 6.1 (toxic substances), Packing Group III, requiring appropriate dangerous goods packaging and labeling. Transport must comply with ADR/RID regulations for toxic substances, including proper packaging, marking with UN numbers, and dangerous goods documentation. Only authorized carriers with dangerous goods training should handle transportation, and emergency response information must accompany shipments.

N-methylaniline is subject to REACH registration requirements in Europe and must comply with CLP classification and labeling regulations. While not currently listed as an SVHC (Substance of Very High Concern), its toxic properties mean it may be subject to workplace exposure limits and industrial emission controls. Companies using this substance must ensure proper risk assessments, safety data sheets, and worker protection measures are in place.

N-methylaniline is available through OYSI, a European distributor specializing in technical chemicals. As an established chemical distributor, OYSI can provide N-methylaniline with proper documentation, safety data sheets, and regulatory compliance support. For procurement inquiries, technical specifications, or regulatory guidance, contact OYSI directly to discuss your specific requirements and ensure proper handling of this regulated toxic substance.