Chlorendic Anhydride from Canada
Chlorendic anhydride (1,4,5,6,7,7-hexachlorocyclopentene-3,4-dicarboxylic anhydride) is a halogenated cyclic compound used in flame-retardant resins. It qualifies for HTS 2903.89.70 as a halogenated derivative of cyclenic hydrocarbons with its characteristic chlorinated cyclopentene ring. Excluded from heterocyclic provisions by Chapter 29 notes.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide CAS 115-27-5 certification and purity documentation to prevent reclassification
• Declare as Corrosive solid (UN 3261) with appropriate spill containment measures
• Check state VOC regulations if used in coatings formulation