Dioctyl Sebacate (DOS) from Canada
Di(2-ethylhexyl) sebacate, an ester of sebacic acid with 2-ethylhexanol, used as plasticizer in PVC for low-temperature flexibility. Classified under HTS 2917.13.00 per chapter note on esters following the parent acid subheading. Clear oily liquid meeting acyclic polycarboxylic acid ester definition.
Duty Rate — Canada → United States
14.8%
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 GC-MS analysis confirming >99% purity as sebacate ester to prevent reclassification
• TSCA registration required for US import; include pre-manufacture notice if new chemical