Dioctyl Sebacate (DOS) from China
Dioctyl sebacate is the di(2-ethylhexyl) ester of sebacic acid, a clear, oily liquid used primarily as a plasticizer in PVC for flexible films and coatings. It falls under HTS 2917.13.00.90 as an ester of sebacic acid, classified as 'other' acyclic polycarboxylic acid esters not specifically enumerated elsewhere in the subheading.
Duty Rate — China → United States
29.8%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify chemical purity and provide Certificate of Analysis (CoA) to confirm sebacate ester composition for proper classification
• Ensure SDS includes exact ester identification; mislabeling as generic plasticizer may trigger reclassification to Chapter 38
• Check for REACH compliance if transshipping from EU, as sebacate esters have specific registration requirements