2,3-dichloronaphthalene-1,4-dione

2,3-dichloronaphthalene-1,4-dione is an organic chemical compound with the molecular formula C10H4Cl2O2 and CAS number 117-80-6. This chlorinated naphthoquinone derivative has a molecular weight of 227.04 g/mol and belongs to the quinone family of compounds. It is classified as a hazardous substance with moderate acute toxicity, skin and eye irritation properties, and significant aquatic toxicity. The compound is regulated under European chemical safety legislation and requires appropriate handling precautions in industrial applications.

2,3-dichloronaphthalene-1,4-dione is typically a crystalline solid at room temperature with a characteristic yellow to orange color. As a quinone derivative, it exhibits limited water solubility but dissolves well in organic solvents such as acetone, chloroform, and benzene. The compound has a molecular weight of 227.04 g/mol and contains two chlorine substituents on the naphthalene ring system. Its chemical structure makes it relatively stable under normal conditions but sensitive to strong reducing agents and bases.

2,3-dichloronaphthalene-1,4-dione is primarily used as an intermediate in organic synthesis and pharmaceutical manufacturing. It serves as a building block for the production of various chemical compounds, including dyes, pigments, and specialty chemicals. The compound finds applications in research and development laboratories for synthetic organic chemistry projects. Its quinone structure makes it valuable in electrochemical applications and as a precursor for bioactive molecules. Industrial uses may include specialized coating formulations and chemical processing applications.

2,3-dichloronaphthalene-1,4-dione requires careful handling with 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. Avoid direct skin and eye contact due to its irritant properties. Use non-sparking tools and equipment, and ensure good housekeeping practices to prevent dust accumulation. Emergency shower and eyewash facilities should be readily accessible in work areas where this compound is handled.

2,3-dichloronaphthalene-1,4-dione should be stored in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers tightly closed and protected from moisture and air exposure. Store separately from strong reducing agents, bases, and incompatible materials. Use appropriate secondary containment to prevent environmental release. Maintain storage temperatures below 25°C when possible and ensure adequate fire protection measures. Regular inspection of containers for signs of deterioration or leakage is recommended for safe long-term storage.

In case of skin contact with 2,3-dichloronaphthalene-1,4-dione, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, rinse immediately with clean water for at least 15 minutes while holding eyelids open. If inhaled, move to fresh air immediately. If swallowed, do not induce vomiting and seek immediate medical attention. Remove contaminated clothing and wash before reuse. Always seek professional medical advice if symptoms persist or worsen after exposure.

2,3-dichloronaphthalene-1,4-dione must be disposed of through licensed hazardous waste management facilities in accordance with local and European waste regulations. The compound cannot be disposed of in regular waste streams due to its hazardous classification and aquatic toxicity. Waste containers should be properly labeled and segregated from other waste types. Small quantities may be suitable for high-temperature incineration under controlled conditions. Always consult with qualified waste management professionals and follow relevant REACH and CLP regulation requirements for proper disposal procedures.

2,3-dichloronaphthalene-1,4-dione is classified under ADR Class 9 (Miscellaneous Dangerous Goods), Packing Group III for transportation purposes. This classification requires appropriate hazardous goods packaging, labeling, and documentation during transport. Vehicles must carry proper safety equipment and drivers require ADR certification. Packages must be marked with the correct shipping name, UN number, and hazard labels. Transport should follow established routes for dangerous goods and comply with quantity limitations and segregation requirements specified in ADR regulations.

2,3-dichloronaphthalene-1,4-dione is subject to European REACH and CLP regulations governing chemical registration, classification, and labeling. The compound is not currently listed as a Substance of Very High Concern (SVHC) under REACH. It must be handled according to its hazard classification including Acute Tox. 4, Skin Irrit. 2, Eye Irrit. 2, and Aquatic toxicity categories. Safety data sheets must be provided to downstream users, and appropriate risk management measures must be implemented. Transportation requires compliance with ADR dangerous goods regulations.

2,3-dichloronaphthalene-1,4-dione is available through OYSI, a specialized European distributor of technical chemicals and industrial raw materials. OYSI provides this compound to research institutions, pharmaceutical companies, and industrial manufacturers across Europe. As an experienced chemical distributor, OYSI ensures proper packaging, documentation, and regulatory compliance for all shipments. Contact OYSI directly for availability, specifications, and delivery options to your specific European location. Professional technical support and safety documentation are provided with all chemical supplies.