R-Mandelic Acid Pharmaceutical Intermediate from Mexico
R-enantiomer of mandelic acid, a chiral aromatic carboxylic acid with alcohol function, used as intermediate for antibiotics. HTS 2918.19.1200 applies as a chemically defined organic compound and stereoisomer exception. Meets pharmacopeia specs for drug synthesis.
Duty Rate — Mexico → United States
10%
Rate breakdown
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
• Provide enantiomeric excess (ee%) certificate for customs; label as intermediate to avoid end-use scrutiny; check for salt forms that follow acid classification per note