2,3-dichloronaphthalene-1,4-dione

2,3-dichloronaphthalene-1,4-dione is a chlorinated quinone derivative with the molecular formula C10H4Cl2O2 and CAS number 117-80-6. This chemical compound belongs to the naphthoquinone family and features two chlorine atoms substituted at positions 2 and 3 of the naphthalene ring system. With a molecular weight of 227.04 g/mol, it is classified as a hazardous substance requiring proper handling and safety measures due to its toxicological properties.

2,3-dichloronaphthalene-1,4-dione typically appears as a crystalline solid at room temperature with a characteristic quinone structure. The compound exhibits limited water solubility due to its chlorinated aromatic nature, making it more soluble in organic solvents. Its quinone functionality contributes to its reactivity and stability properties. The presence of chlorine substituents affects its physical properties including melting point, volatility, and chemical reactivity compared to unsubstituted naphthoquinone.

2,3-dichloronaphthalene-1,4-dione serves primarily as an intermediate in organic synthesis and chemical manufacturing processes. It is commonly used in the production of dyes, pigments, and other quinone-based compounds. The compound also finds applications in pharmaceutical research as a building block for drug development and in the synthesis of biologically active molecules. Its unique chlorinated quinone structure makes it valuable for specialized chemical transformations in industrial applications.

2,3-dichloronaphthalene-1,4-dione requires careful handling using appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Given its Acute Tox. 4 classification and skin/eye irritation potential, direct contact must be avoided. Proper training in chemical handling procedures is essential, and emergency wash stations should be readily accessible in work areas.

2,3-dichloronaphthalene-1,4-dione should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from direct sunlight and heat sources. The storage area must be secure and accessible only to authorized personnel due to its hazardous classification. Keep containers properly labeled and maintain an inventory system. Store away from incompatible materials such as strong reducing agents and bases. Regular inspection of containers for damage or leakage is recommended.

In case of skin contact with 2,3-dichloronaphthalene-1,4-dione, immediately remove contaminated clothing and rinse the affected area with plenty of water for at least 15 minutes. For eye contact, flush eyes thoroughly with clean water and seek medical attention promptly. If inhaled, move the person to fresh air immediately. In case of ingestion, do not induce vomiting and seek immediate medical assistance. Always consult the safety data sheet and contact poison control if necessary.

2,3-dichloronaphthalene-1,4-dione must be disposed of through licensed hazardous waste disposal services in accordance with local and EU waste regulations. The compound cannot be disposed of in regular waste streams due to its hazardous classification and environmental impact potential. Contaminated materials, containers, and protective equipment require proper hazardous waste treatment. Consult local environmental authorities and follow REACH and waste framework directive requirements for compliant disposal procedures.

2,3-dichloronaphthalene-1,4-dione is classified as ADR Class 9 (Miscellaneous dangerous goods), Packing Group III for transportation purposes. It requires proper packaging in UN-approved containers with appropriate hazard labels and documentation. Transport must comply with ADR/RID regulations for dangerous goods, including proper vehicle marking and driver certification. Shipping documents must include the correct UN number, proper shipping name, and hazard class information for regulatory compliance.

2,3-dichloronaphthalene-1,4-dione is subject to REACH regulation requiring registration for manufacture or import above certain tonnage thresholds. It falls under CLP regulation for classification, labeling, and packaging with mandatory GHS07 and GHS09 pictograms. While not currently listed as SVHC, its aquatic toxicity classification subjects it to environmental monitoring requirements. Users must maintain safety data sheets, implement risk management measures, and comply with occupational exposure limits where established.

2,3-dichloronaphthalene-1,4-dione is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across the continent. OYSI provides reliable supply chains, regulatory compliance support, and technical expertise for chemical procurement. As a professional distributor, OYSI ensures proper handling, documentation, and delivery of hazardous materials while maintaining quality standards. Contact OYSI directly for availability, specifications, and regulatory documentation requirements for your specific application needs.