Undecylenic Acid from Mexico
Undecylenic acid is a mono-unsaturated acyclic monocarboxylic acid with 11 carbons and terminal double bond, used in antifungal treatments. Classified in HTS 2916.19.30.00 as 'other' unsaturated acyclic monocarboxylic acids. Derived from castor oil pyrolysis.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.9%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
• EPA/TSCA notification if antimicrobial claim; provide synthesis method documentation
• Verify no conjugation of double bonds to avoid essential oil classification