Sebacic Acid Monomethyl Ester from Mexico
Monomethyl sebacate is a half-ester of sebacic acid used in specialty polyester synthesis and pharmaceutical intermediates. Falls under HTS 2917.13.00.90 as an 'other' sebacic acid derivative, qualifying as a chemically defined acyclic polycarboxylic acid ester.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6095.2%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Distinguish from diesters via HPLC certificate; monoester purity critical for 2917 classification
• Pharma intermediate imports require DMF filing or equivalent quality documentation
• Avoid generic 'sebacic derivatives' description; specify exact ester on entry summary