Undecylenic Acid from Canada
Undecylenic acid (10-undecenoic acid, CH2=CH(CH2)8COOH) is an unsaturated acyclic monocarboxylic acid with terminal double bond, produced from castor oil. HTS 2916.19.50.00 classification as 'other' unsaturated acid. Used in antifungal treatments and polymers.
Duty Rate — Canada → 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
9903.05.2910%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
• Submit NMR spectrum confirming terminal alkene position (CAS 112-38-9)
• Declare distillation purity (>95%) to distinguish from castor oil derivatives (Chapter 15)
• Include medical/pharmaceutical end-use certificates if applicable for FDA compliance