Vaccenic Acid from Mexico
Vaccenic acid (trans-11-octadecenoic acid) is a ruminant-derived trans mono-unsaturated acyclic monocarboxylic fatty acid. Classified under HTS 2916.19.50.00 as other unsaturated acyclic acid. Studied for conjugated linoleic acid precursor role.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%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
• GC-MS confirmation of trans-11 isomer (CAS 25354-92-1)
• Dairy/beef fat origin declaration with isolation method
• Oxidation stability testing documentation