Undecylenic Acid from Japan
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 — Japan → United States
23.8%
Rate breakdown
9903.04.6211.3%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, 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