10-Undecenoic Acid from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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%