2932.99.90.90/Trioxane Pharmaceutical Intermediate/Mexico

Trioxane Pharmaceutical Intermediate from Mexico

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 — Mexico → United States

110%

Rate breakdown

9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter

9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter

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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