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
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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