4-methyl-1,2-dinitrobenzene

4-methyl-1,2-dinitrobenzene is an aromatic nitro compound with the molecular formula C7H6N2O4 and CAS number 610-39-9. This chemical belongs to the dinitrobenzene family, featuring two nitro groups attached to a benzene ring along with a methyl substituent. With a molecular weight of 182.13 g/mol, it is classified as a hazardous substance with multiple serious health and environmental risks, including carcinogenic, mutagenic, and reproductive toxicity properties.

4-methyl-1,2-dinitrobenzene is typically a crystalline solid at room temperature with a yellow to orange coloration. As an aromatic nitro compound, it exhibits limited water solubility but dissolves readily in organic solvents such as alcohols and aromatic hydrocarbons. The compound has a molecular weight of 182.13 g/mol and contains both electron-withdrawing nitro groups and an electron-donating methyl group, which influence its chemical reactivity and physical properties.

4-methyl-1,2-dinitrobenzene serves primarily as an intermediate in organic synthesis and chemical manufacturing processes. It is commonly used in the production of dyes, pigments, and other aromatic compounds through reduction or substitution reactions. The compound also finds applications in pharmaceutical intermediate synthesis and as a precursor for various industrial chemicals. Due to its hazardous nature, its use is typically restricted to controlled industrial environments with appropriate safety measures.

4-methyl-1,2-dinitrobenzene requires strict safety protocols due to its classification as Acute Tox. 3, Carc. 1B, Muta. 2, and Repr. 2. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and respiratory protection. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Avoid skin contact and ingestion completely, and ensure all personnel are trained in proper handling procedures and emergency response protocols before use.

4-methyl-1,2-dinitrobenzene must be stored in a cool, dry, well-ventilated area away from heat sources, direct sunlight, and incompatible materials. The storage area should be secured and accessible only to trained personnel due to its serious health hazards. Containers should be tightly sealed and properly labeled with appropriate hazard warnings. Regular inspection of storage conditions and container integrity is essential to prevent accidental exposure or environmental contamination.

Immediate action is critical following contact with 4-methyl-1,2-dinitrobenzene due to its high acute toxicity. For skin contact, remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. In case of eye contact, flush immediately with water and seek medical attention. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult emergency services and provide the safety data sheet to medical personnel.

4-methyl-1,2-dinitrobenzene requires disposal as hazardous waste through licensed waste management companies in accordance with local and European regulations. The substance cannot be disposed of in regular waste streams due to its carcinogenic, mutagenic, and toxic properties. Waste containers must be properly labeled and segregated from other waste types. Incineration at high temperatures in specialized facilities is typically the preferred disposal method, ensuring complete destruction while preventing environmental contamination.

4-methyl-1,2-dinitrobenzene is classified under ADR Class 6.1 (toxic substances), Packing Group II, indicating significant transport hazards. Transportation requires appropriate UN-specification packaging, proper labeling with GHS06, GHS08, and GHS09 pictograms, and accompanying transport documentation. Only certified carriers experienced in handling toxic chemicals should transport this substance. Emergency response information must be readily available during transport, and all applicable international dangerous goods regulations must be strictly followed.

4-methyl-1,2-dinitrobenzene is subject to extensive European chemical regulations under REACH and CLP due to its classification as Carc. 1B, Muta. 2, and Repr. 2. Users must comply with authorization and restriction requirements, maintain proper registration, and implement risk management measures. The substance requires special handling permits in many jurisdictions and is subject to workplace exposure limits. Regular monitoring and reporting may be mandatory for industrial users to ensure compliance with occupational health and environmental protection standards.

4-methyl-1,2-dinitrobenzene is available through specialized chemical distributors like OYSI, which serves the European market with high-quality chemical products. Due to the substance's hazardous classification and regulatory requirements, purchases are typically restricted to qualified industrial users with appropriate licenses and safety infrastructure. Buyers must demonstrate proper handling capabilities and regulatory compliance. Contact OYSI directly to discuss availability, technical specifications, and regulatory documentation required for your specific application and location.