Isosafrole USP Grade from Mexico
Pharmaceutical-grade isosafrole meeting USP standards for purity, used as an intermediate in synthesizing piperonal derivatives and other API precursors. Classified under HTS 2932.91.00.00 due to its specific chemical identity as a heterocyclic oxygen compound despite pharmaceutical end-use intent. Supplied in amber glass bottles with stabilizers only for transport safety.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include USP Certificate of Analysis showing >99% purity to avoid reclassification as a mixture
• Declare intended pharmaceutical intermediate use but note Chapter 29 takes precedence over Chapter 30 exclusions
• Ensure stabilizers qualify under Chapter Note (f) as necessary for preservation/transport only