4,4,5,5-tetrachloro-1,3-dioxolan-2-one

4,4,5,5-tetrachloro-1,3-dioxolan-2-one is a chlorinated organic compound with the molecular formula C3Cl4O3 and CAS number 22432-68-4. This chemical features a five-membered dioxolane ring structure with four chlorine atoms attached to carbons 4 and 5, and a carbonyl group at position 2. With a molecular weight of 225.8 g/mol, it belongs to the class of halogenated cyclic compounds and is classified as highly toxic and corrosive.

4,4,5,5-tetrachloro-1,3-dioxolan-2-one is a dense organic liquid at room temperature due to its high chlorine content. The compound exhibits typical characteristics of chlorinated organics, including limited water solubility and good solubility in organic solvents. Its molecular structure, containing both electron-withdrawing chlorine atoms and a cyclic carbonate moiety, contributes to its chemical reactivity and physical properties. The high degree of chlorination results in increased density and boiling point compared to non-halogenated analogs.

4,4,5,5-tetrachloro-1,3-dioxolan-2-one is primarily used as a specialized chemical intermediate in organic synthesis and pharmaceutical research. Its unique structure makes it valuable for creating complex molecules in fine chemical manufacturing. The compound may also serve as a reagent in specialized chemical reactions where both the cyclic carbonate functionality and chlorinated structure are required. Due to its high toxicity classification, its use is restricted to professional industrial applications with appropriate safety measures.

4,4,5,5-tetrachloro-1,3-dioxolan-2-one requires extreme caution during handling due to its Acute Tox. 2 and Skin Corr. 1B classifications. Essential personal protective equipment includes chemical-resistant gloves, full face protection, and acid-resistant clothing. Work must be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Given its corrosive nature, avoid skin and eye contact completely. Only trained personnel should handle this substance, following strict safety protocols and emergency procedures.

4,4,5,5-tetrachloro-1,3-dioxolan-2-one must be stored in tightly sealed, chemically compatible containers in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Due to its corrosive properties, use containers made of suitable materials that resist chemical attack. Store separately from bases, metals, and oxidizing agents to prevent dangerous reactions. Access should be restricted to authorized personnel only, with appropriate warning labels and safety data sheets readily available.

Immediate action is critical due to the substance's high toxicity and corrosive nature. For skin contact, immediately remove contaminated clothing and flush affected areas with copious amounts of water for at least 15 minutes. If inhaled, move to fresh air immediately and seek medical attention. For eye contact, flush with water continuously and remove contact lenses if easily removable. In all cases of exposure, seek immediate medical attention and provide the safety data sheet to medical personnel.

4,4,5,5-tetrachloro-1,3-dioxolan-2-one must be disposed of as hazardous waste through licensed waste management companies specializing in toxic chemical disposal. Due to its high toxicity classification and corrosive properties, it cannot be disposed of through normal waste streams. Treatment typically involves high-temperature incineration in specialized facilities equipped to handle chlorinated compounds. Disposal must comply with local, national, and European waste regulations, including proper documentation and tracking requirements.

4,4,5,5-tetrachloro-1,3-dioxolan-2-one is classified as ADR Class 6.1 (toxic substances), Packing Group II, indicating significant transport restrictions. Shipments require proper dangerous goods packaging, labeling with GHS06 and GHS05 pictograms, and appropriate transport documentation. Only certified carriers trained in hazardous materials transport may handle shipments. Vehicles must carry emergency equipment and follow designated routes. International transport requires compliance with IMDG (sea) or IATA (air) dangerous goods regulations as applicable.

4,4,5,5-tetrachloro-1,3-dioxolan-2-one is subject to multiple European regulations including REACH registration requirements, CLP classification as Acute Tox. 2, Acute Tox. 4, and Skin Corr. 1B. While not currently listed as an SVHC substance, its high toxicity classification means it requires safety data sheets, proper labeling with 'Danger' signal word, and compliance with occupational exposure limits. Users must follow strict workplace safety regulations and may need authorization depending on intended use and quantities.

4,4,5,5-tetrachloro-1,3-dioxolan-2-one is available through OYSI, a specialized European distributor of fine chemicals and intermediates. As a professional chemical supplier, OYSI ensures proper handling, documentation, and regulatory compliance for this highly toxic substance. Due to its hazardous classification, purchase is typically restricted to qualified industrial users with appropriate safety infrastructure and regulatory permissions. Contact OYSI directly for availability, technical specifications, and regulatory documentation required for your specific application.