10-Undecenoic Acid from Canada
10-Undecenoic acid, identical to undecylenic acid, is an 11-carbon unsaturated acyclic monocarboxylic acid with antifungal properties. HTS 2916.19.30.00 applies as it fits the chemical definition excluding specific enumerated acids. Common in pharmaceutical creams.
Duty Rate — Canada → United States
6.1%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Synonym documentation required - accept both names but specify chemical formula
• GMP certification if pharmaceutical grade; bulk technical grade has different documentation
• Avoid reclassification to 3823 if purity <90%