Hexachlorobutadiene from Mexico
Hexachlorobutadiene (C4Cl6) is a fully chlorinated saturated derivative of butadiene (acyclic). Classified in HTS 2903.19.60.50 as other saturated chlorinated acyclic hydrocarbons despite name suggesting unsaturation. Used as heat transfer fluid.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide saturation confirmation via NMR spectrum if challenged
• Include end-use statement for heat transfer applications
• Comply with EPCRA reporting thresholds