1-chloro-2,3-dinitrobenzene

1-chloro-2,3-dinitrobenzene is an aromatic compound with the molecular formula C6H3ClN2O4 and CAS number 25567-67-3. This chemical features a benzene ring substituted with one chlorine atom and two nitro groups in specific positions. With a molecular weight of 202.55 g/mol, it belongs to the class of chloronitrobenzenes, which are important chemical intermediates used in various industrial applications.

1-chloro-2,3-dinitrobenzene is typically a solid crystalline compound at room temperature with a characteristic aromatic odor. The presence of both electron-withdrawing nitro groups and chlorine substituent significantly affects its chemical reactivity and physical properties. Its molecular structure (C6H3ClN2O4) contributes to its stability under normal conditions, though specific data on melting point, boiling point, and solubility would require detailed technical specifications.

1-chloro-2,3-dinitrobenzene serves as an important chemical intermediate in organic synthesis and industrial manufacturing processes. It is commonly used in the production of dyes, pigments, and pharmaceutical intermediates. The compound's reactive chlorine and nitro groups make it valuable for nucleophilic substitution reactions and reduction processes in fine chemical synthesis, particularly in the development of agrochemicals and specialty chemicals.

1-chloro-2,3-dinitrobenzene requires careful handling due to its Acute Tox. 3 classification and STOT RE 2 properties. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and respiratory protection in well-ventilated areas. Avoid skin and eye contact, inhalation, and ingestion. Work in fume hoods when possible, use proper grounding procedures to prevent static buildup, and ensure emergency shower and eyewash stations are accessible.

1-chloro-2,3-dinitrobenzene should be stored in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers tightly sealed and store in original labeled packaging. Due to its toxic properties and environmental hazards (Aquatic Acute 1, Aquatic Chronic 1), maintain secure storage away from water sources. Separate from incompatible materials such as strong oxidizers and bases to prevent dangerous reactions.

Immediate action is required if contact with 1-chloro-2,3-dinitrobenzene occurs due to its acute toxicity. For skin contact, remove contaminated clothing and wash thoroughly with soap and water for at least 15 minutes. If eye contact occurs, flush immediately with clean water for 15 minutes. In case of inhalation, move to fresh air immediately. For ingestion, do not induce vomiting and seek medical attention immediately in all cases.

1-chloro-2,3-dinitrobenzene must be disposed of as hazardous waste according to local and national regulations. Due to its environmental toxicity classification (Aquatic Acute 1, Aquatic Chronic 1), it cannot be disposed of in regular waste streams or sewerage systems. Contact licensed hazardous waste disposal companies for proper treatment, which typically involves high-temperature incineration in specialized facilities equipped with appropriate emission control systems.

1-chloro-2,3-dinitrobenzene is classified as ADR Class 6.1 (toxic substances), Packing Group II, requiring specific transport protocols. Packages must bear appropriate hazard labels including GHS06, GHS08, and GHS09 pictograms with 'Danger' signal word. Use UN-approved packaging and ensure proper documentation including transport documents. Drivers must hold ADR certification for dangerous goods, and vehicles require appropriate equipment and emergency procedures for toxic substance transport.

1-chloro-2,3-dinitrobenzene is subject to comprehensive chemical regulations including REACH registration requirements in Europe and CLP classification obligations. While not currently listed as SVHC (Substance of Very High Concern), its Acute Tox. 3 and environmental hazard classifications impose strict handling, labeling, and safety data sheet requirements. Companies must comply with occupational exposure limits, environmental discharge restrictions, and waste management regulations specific to toxic substances.

1-chloro-2,3-dinitrobenzene is available through OYSI, a specialized European distributor of industrial chemicals and technical products. OYSI provides reliable supply chains for chemical intermediates with proper regulatory compliance and safety documentation. As a professional chemical distributor, OYSI ensures appropriate packaging, labeling, and transport documentation for hazardous materials like 1-chloro-2,3-dinitrobenzene, serving industrial customers across European markets with technical expertise and regulatory support.