2-methylbenzene-1,4-diamine

2-methylbenzene-1,4-diamine is an aromatic diamine compound with the molecular formula C7H10N2 and CAS number 95-70-5. This organic chemical features a benzene ring substituted with a methyl group and two amino groups in specific positions. With a molecular weight of 122.17 g/mol, it belongs to the family of methylated phenylenediamines and is classified as a hazardous substance requiring careful handling due to its toxicity and sensitizing properties.

2-methylbenzene-1,4-diamine is typically a crystalline solid at room temperature with a characteristic amine odor. The compound exhibits moderate water solubility and good solubility in organic solvents. Its aromatic structure with two amino groups makes it reactive toward oxidation and capable of forming salts with acids. The presence of the methyl substituent affects its physical properties compared to unsubstituted phenylenediamine, influencing its melting point, solubility, and reactivity patterns.

2-methylbenzene-1,4-diamine is primarily used as an intermediate in the synthesis of dyes, pigments, and hair colorants. It serves as a building block for producing various azo dyes and serves in the manufacture of polymers and resins. The compound finds applications in the chemical industry for synthesizing pharmaceuticals and agricultural chemicals. Its diamine structure makes it valuable for cross-linking reactions and as a curing agent in certain polymer applications.

2-methylbenzene-1,4-diamine requires strict safety measures due to its Acute Tox. 3-4 and Skin Sens. 1 classifications. Always wear appropriate PPE including chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas or under fume extraction systems to prevent inhalation exposure. Avoid direct skin contact as the substance is a known skin sensitizer. Use non-sparking tools and equipment, and ensure proper grounding to prevent static electricity buildup during handling operations.

2-methylbenzene-1,4-diamine must 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 and acids. Storage areas should be equipped with appropriate containment measures and emergency equipment. Maintain storage temperatures below recommended limits and ensure containers are properly labeled according to CLP regulations. Regular inspection of storage containers for signs of deterioration or leakage is essential.

2-methylbenzene-1,4-diamine exposure requires immediate emergency response due to its toxicity. For skin contact, immediately remove contaminated clothing and wash affected areas thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush with clean water for at least 15 minutes and seek medical attention. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician and provide the safety data sheet.

2-methylbenzene-1,4-diamine disposal must comply with local, national, and EU waste regulations as it is classified as hazardous waste. The substance cannot be disposed of in regular waste streams due to its toxicity and environmental classification (Aquatic Chronic 2). Arrange disposal through licensed hazardous waste contractors who can ensure proper treatment or incineration at authorized facilities. Never discharge into sewers, waterways, or soil. Maintain proper documentation of waste disposal for regulatory compliance.

2-methylbenzene-1,4-diamine is classified under ADR Class 6.1 (Toxic substances), Packing Group III, requiring compliance with dangerous goods transport regulations. The substance must be packaged in UN-approved containers with appropriate hazard labels and documentation. Transport vehicles must carry proper placarding and emergency response information. Only authorized personnel trained in dangerous goods handling should manage transportation. Ensure segregation from incompatible materials and follow specific loading, unloading, and emergency procedures during transport.

2-methylbenzene-1,4-diamine is subject to comprehensive EU chemical regulations including REACH registration requirements and CLP classification obligations. The substance carries GHS06 and GHS09 pictograms with 'Danger' signal word, requiring specific labeling and safety data sheet provisions. While not currently listed as SVHC under REACH, its toxic and sensitizing properties may subject it to additional restrictions or authorizations. Manufacturers and importers must comply with registration requirements and downstream users must follow exposure scenario recommendations.

2-methylbenzene-1,4-diamine is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides this substance to industrial customers with proper documentation including certificates of analysis and safety data sheets. As a regulated chemical requiring specialized handling and storage, purchase is typically restricted to qualified industrial users with appropriate facilities and safety measures. Contact OYSI directly for availability, specifications, and regulatory compliance support for your specific application requirements.