2-methyl-5-nitroaniline

2-methyl-5-nitroaniline is an aromatic amine compound with the molecular formula C7H8N2O2 and CAS number 99-55-8. This organic chemical features both methyl and nitro substituents on an aniline ring structure, giving it a molecular weight of 152.15 g/mol. It is classified as a Category 2 carcinogen and presents acute toxicity hazards, requiring careful handling in industrial applications.

2-methyl-5-nitroaniline is typically a crystalline solid at room temperature with a characteristic aromatic amine odor. As an aromatic nitroaniline derivative, it exhibits limited water solubility but dissolves readily in organic solvents such as alcohols and aromatic hydrocarbons. The compound's yellow to orange coloration is typical of nitroaniline compounds, and its melting point and boiling point are influenced by intermolecular hydrogen bonding.

2-methyl-5-nitroaniline serves primarily as an intermediate in the synthesis of dyes, pigments, and pharmaceutical compounds. It is commonly used in the production of azo dyes and serves as a building block for various organic synthesis reactions in the chemical industry. The compound's aromatic structure with both electron-donating and electron-withdrawing groups makes it valuable for creating complex molecular structures in specialty chemical manufacturing.

2-methyl-5-nitroaniline requires strict safety measures due to its carcinogenic and acute toxicity properties. Personnel must wear appropriate PPE including chemical-resistant gloves, safety goggles, and respiratory protection when handling this substance. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Direct skin contact must be avoided, and all handling procedures should follow established safety protocols for carcinogenic substances.

2-methyl-5-nitroaniline should be stored in a cool, dry, well-ventilated area away from heat sources, direct sunlight, and incompatible materials. The compound must be kept in tightly sealed containers to prevent moisture absorption and contamination. Storage areas should be equipped with appropriate spill containment measures and restricted access due to the carcinogenic nature of the substance. Regular inventory checks ensure container integrity and proper labeling.

Immediate action is required following contact with 2-methyl-5-nitroaniline due to its toxicity. For skin contact, remove contaminated clothing and wash affected areas thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15-20 minutes. If inhaled, move the person to fresh air immediately. Seek medical attention promptly in all cases of exposure, providing the safety data sheet to medical personnel.

2-methyl-5-nitroaniline must be disposed of through licensed hazardous waste contractors due to its carcinogenic classification and environmental impact. The substance cannot be disposed of in regular waste streams or sewerage systems. Disposal methods should comply with local, national, and EU waste regulations, typically involving high-temperature incineration at authorized facilities. All disposal activities must be properly documented and follow the waste hierarchy principles established by European waste legislation.

2-methyl-5-nitroaniline is classified under ADR Class 6.1 (toxic substances), Packing Group III for transportation purposes. The substance requires appropriate packaging, labeling, and documentation according to dangerous goods regulations. Transport vehicles must carry proper placarding and emergency response information. Drivers require hazardous materials training, and shipments must follow designated routes when applicable. All transport documentation must include the UN number and proper shipping name for this toxic substance.

2-methyl-5-nitroaniline is subject to comprehensive European chemical regulations including REACH registration requirements and CLP classification obligations. As a Category 2 carcinogen, it may be subject to workplace exposure limits and special handling requirements under occupational health legislation. The substance requires proper labeling with GHS06 and GHS08 pictograms and 'Danger' signal word. Manufacturers and importers must comply with notification and safety data sheet requirements throughout the supply chain.

2-methyl-5-nitroaniline is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across the region. OYSI provides this substance with complete regulatory documentation, proper packaging, and technical support for industrial applications. As a controlled chemical requiring specialized handling, purchasing should only be conducted through established suppliers who ensure compliance with all applicable European regulations and provide appropriate safety documentation and transport arrangements.