Indole-3-Methanol from Mexico
Indole-3-methanol (gramine precursor) features a hydroxymethyl group on indole, under HTS 2933.99.0500 with heterocycle precedence over alcohol function. Used in alkaloid total synthesis.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.60100%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
• Primary alcohol function (2906) subordinate to named heterocycle
• Hygroscopic solid; moisture-proof packaging essential
• Common name 'gramine methiodide' salt - classify with free base