1,4-dichlorobut-2-ene

1,4-dichlorobut-2-ene is an organochlorine compound with the molecular formula C4H6Cl2 and CAS number 764-41-0. This chemical substance has a molecular weight of 124.99 g/mol and contains a double bond between carbon atoms 2 and 3, with chlorine atoms attached to positions 1 and 4. It is classified as a highly hazardous substance due to its carcinogenic properties and acute toxicity, requiring specialized handling and safety measures in industrial applications.

1,4-dichlorobut-2-ene is a chlorinated organic compound that typically exists as a liquid at room temperature. Due to its chlorinated alkene structure, it exhibits limited water solubility but dissolves well in organic solvents. The presence of the C=C double bond and two chlorine substituents influences its reactivity and stability. The compound's physical properties are characteristic of small halogenated hydrocarbons, with specific gravity and boiling point values typical for molecules of this molecular weight and structure.

1,4-dichlorobut-2-ene serves primarily as a chemical intermediate in organic synthesis and pharmaceutical manufacturing. It is used in specialized industrial processes where its unique structural properties - containing both a double bond and two chlorine atoms - make it valuable for creating more complex molecules. Due to its high toxicity and carcinogenic classification, its applications are limited to controlled industrial environments with appropriate safety measures and regulatory compliance.

1,4-dichlorobut-2-ene requires extreme caution during handling due to its Carc. 1B and Acute Tox. 2-3 classifications. Essential personal protective equipment includes chemical-resistant gloves, full face protection, and respiratory protection. Work must be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Skin and eye contact must be absolutely avoided due to its Skin Corr. 1B classification. Only trained personnel should handle this substance following strict safety protocols.

1,4-dichlorobut-2-ene must be stored in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Storage containers should be made of compatible materials resistant to corrosion. Due to its carcinogenic and highly toxic nature, it requires secure storage with restricted access and appropriate labeling with GHS pictograms (GHS08, GHS06, GHS05, GHS09). Temperature control and protection from light may be necessary to prevent degradation and maintain product stability.

1,4-dichlorobut-2-ene contact requires immediate emergency response due to its corrosive and toxic nature. For skin contact, immediately remove contaminated clothing and flush the affected area with copious amounts of water for at least 15 minutes. In case of eye contact, rinse immediately with water and seek urgent medical attention. If inhaled, move the person to fresh air immediately. For all exposure routes, seek immediate medical attention and provide the safety data sheet to medical personnel.

1,4-dichlorobut-2-ene disposal requires specialized hazardous waste management due to its carcinogenic and highly toxic classification. The substance cannot be disposed of through regular waste streams and must be handled by licensed hazardous waste contractors. Incineration at high temperatures in specialized facilities equipped with appropriate emission controls is typically required. All disposal activities must comply with local, national, and European waste regulations, including proper documentation and tracking throughout the disposal process.

1,4-dichlorobut-2-ene is classified under ADR Class 6.1 (toxic substances), Packing Group II, indicating high toxicity requiring special transport precautions. Transportation must comply with dangerous goods regulations, including appropriate packaging, labeling, and documentation. Vehicles must carry emergency response information and appropriate safety equipment. Only authorized carriers trained in hazardous materials transport should handle shipments. Proper shipping names, hazard labels, and emergency contact information must accompany all shipments.

1,4-dichlorobut-2-ene is subject to extensive European chemical regulations under REACH and CLP due to its carcinogenic classification and high toxicity. Its Carc. 1B status may trigger authorization requirements or restrictions under REACH Annex XIV or XVII. Users must comply with occupational exposure limits, workplace safety regulations, and environmental protection measures. The substance requires proper classification, labeling, and safety data sheet communication throughout the supply chain, with potential notification requirements for certain uses.

1,4-dichlorobut-2-ene is available through specialized chemical distributors in Europe, including OYSI, which supplies high-quality chemical products to industrial customers. Due to its hazardous classification and regulatory requirements, procurement requires proper authorization, safety documentation, and compliance verification. Suppliers must ensure appropriate packaging, labeling, and transportation arrangements. Contact OYSI's technical team for availability, regulatory support, and safe supply chain management for this controlled substance.