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2932.99.90.90/Trioxane Pharmaceutical Intermediate/China

Trioxane Pharmaceutical Intermediate from China

Trioxane is a heterocyclic compound with oxygen hetero-atoms only, used as an intermediate in pharmaceutical synthesis for antimalarial drugs like artemisinin derivatives. It features a six-membered ring with three oxygen atoms, fitting precisely under HTS 2932.99 for other heterocyclic oxygen compounds not elsewhere specified. This pure chemical compound meets Chapter 29 requirements for separate chemically defined organic compounds.

Duty Rate — China → United States

16.2%

Rate breakdown

9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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Import Tips

• Provide detailed chemical analysis certificates confirming heterocyclic structure and oxygen hetero-atoms only to avoid misclassification

• Ensure COA (Certificate of Analysis) verifies purity >98% as mixtures may shift to different headings

• Label shipments clearly as 'pharmaceutical intermediate - not for direct medicinal use' to comply with FDA import requirements