(S)-3-Quinuclidinol from Mexico
(S)-3-Quinuclidinol represents the S-enantiomer of this nitrogen-heterocyclic alcohol with pyridine ring, under HTS 2933.35.00.00. Used in synthesis of pharmaceutical intermediates for CNS-active compounds.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6094.2%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
Import Tips
• Maintain segregation from R-enantiomer during storage/shipping to preserve chirality; document with stability data
• For bulk imports, pre-register with DEA if precursor potential exists, though not scheduled