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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

16.1%

Rate breakdown

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

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%