5-methyl-2-nitroaniline

5-methyl-2-nitroaniline is an aromatic amine compound with the molecular formula C7H8N2O2 and CAS number 578-46-1. It belongs to the nitroaniline family, characterized by both amino and nitro functional groups attached to a benzene ring with an additional methyl substituent. This organic compound has a molecular weight of 152.15 g/mol and is classified as a hazardous substance due to its acute toxicity and potential for causing specific target organ toxicity with repeated exposure.

5-methyl-2-nitroaniline is typically a solid crystalline compound at room temperature, commonly appearing as yellow to orange-colored crystals or powder. The compound exhibits limited solubility in water but dissolves readily in organic solvents such as ethanol, acetone, and benzene. It has a characteristic aromatic odor typical of substituted anilines. The presence of both electron-withdrawing nitro and electron-donating amino groups influences its chemical reactivity and stability under various conditions.

5-methyl-2-nitroaniline serves primarily as an intermediate in the synthesis of dyes, pigments, and pharmaceuticals. It is commonly used in the production of azo dyes and various colorants for textiles and industrial applications. The compound also functions as a building block in organic synthesis for creating more complex aromatic compounds. Additionally, it finds applications in the manufacture of certain pharmaceutical intermediates and specialty chemicals where its specific substitution pattern is required for desired molecular properties.

5-methyl-2-nitroaniline requires careful handling due to its acute toxicity classification (Acute Tox. 3). Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and protective clothing to prevent skin and eye contact. Work should be conducted in well-ventilated areas or under fume hoods to avoid inhalation exposure. Avoid eating, drinking, or smoking when handling the substance. Wash hands thoroughly after handling and ensure emergency eyewash stations and safety showers are readily accessible in the work area.

5-methyl-2-nitroaniline should be stored in tightly sealed containers in a cool, dry, and well-ventilated area away from direct sunlight and heat sources. Keep the substance separated from strong oxidizing agents, acids, and incompatible materials to prevent hazardous reactions. Storage areas should be equipped with appropriate containment measures and clearly labeled with hazard warnings. Maintain storage temperatures within recommended ranges and ensure containers are properly sealed to prevent contamination and minimize exposure risks to personnel.

Immediate action is required upon contact with 5-methyl-2-nitroaniline due to its toxicity. For skin contact, remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15-20 minutes while holding eyelids open. If inhaled, move the person to fresh air and monitor breathing. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician after any exposure incident.

5-methyl-2-nitroaniline must be disposed of as hazardous waste according to local, national, and European waste regulations. The substance cannot be disposed of through regular waste streams due to its toxicity and environmental hazard classification (Aquatic Chronic 2). Contact licensed hazardous waste disposal companies for proper collection and treatment. Avoid releasing the substance into sewers, waterways, or soil. Empty containers should also be treated as hazardous waste and disposed of through appropriate channels following decontamination procedures.

5-methyl-2-nitroaniline is classified under ADR Class 6.1 (toxic substances) Packing Group III for transportation. The substance must be packaged in UN-approved containers with appropriate hazard labels and documentation. Transport vehicles must comply with ADR regulations for toxic substances, including proper placarding and driver certification. Shipping papers must include the correct UN number, proper shipping name, and hazard class. Ensure packages are secured to prevent damage during transit and that emergency response information is readily available.

5-methyl-2-nitroaniline is subject to various European chemical regulations including REACH registration requirements and CLP classification and labeling obligations. The substance carries mandatory hazard pictograms (GHS06, GHS08, GHS09) and the signal word 'Danger' on labels and safety data sheets. While not currently listed as a SVHC (Substance of Very High Concern), it must comply with standard chemical safety requirements including exposure assessments and risk management measures for industrial use and distribution.

5-methyl-2-nitroaniline is available through OYSI, a specialized European distributor of technical chemicals and intermediates. OYSI provides this compound to industrial customers across Europe with appropriate documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures proper handling, packaging, and transportation of hazardous substances like 5-methyl-2-nitroaniline while meeting all European regulatory requirements for chemical distribution and customer support services.