Undecylenic Acid from China
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 — China → United States
137.5%
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
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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