Isosafrole USP Grade
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered a lactone derivative
Structural interpretation debate; lactones have separate subheading within oxygen heterocycles.
If pre-diluted for pharma processing
Chapter Note (d) allows water solutions, but pharma dilutions may trigger Chapter 30 consideration.
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The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• 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
Related Products under HTS 2932.91.00.00
Isosafrole
Isosafrole is a heterocyclic compound with an oxygen hetero-atom in its methylenedioxy ring structure, chemically defined as 1,3-benzodioxole-5-propene. It falls under HTS 2932.91.00.00 as a specific compound within the category of other heterocyclic compounds with oxygen hetero-atoms only. Primarily used as a chemical intermediate in fragrance and pharmaceutical synthesis.
Piperonaldehyde Isosafrole Precursor
High-purity isosafrole specifically marketed as the key precursor for piperonal (heliotropin) production in fragrance industry. Meets Chapter 29 (a) as separate chemically defined compound with oxygen heterocyclic structure. Packaged in 25kg drums for industrial chemical distribution.
Isosafrole Technical Grade 98%
Technical grade isosafrole with 98% purity containing characteristic impurities, still classified as the specific compound under HTS 2932.91.00.00 per Chapter Note (a). Used in bulk for synthesis of safrole derivatives and aroma chemicals. Supplied in ISO tanks or 200L drums.
Isosafrole with Stabilizer for Transport
Isosafrole containing BHT stabilizer added solely for transport stability per Chapter Note (f), maintaining classification under HTS 2932.91.00.00. The stabilizer doesn't render it suitable for specific use beyond general chemical handling. Used in perfume intermediate production.