3-Methoxyphenol (m-Guaiacol) from Mexico
m-Guaiacol (3-methoxyphenol) is an isomeric ether-phenol used in pharmaceutical synthesis and as a resin intermediate. Classified under HTS 2909.50.4500 per additional U.S. note 3 to section VI for chemically defined ether-phenols. Its meta-substitution pattern provides unique reactivity profiles.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6094.5%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
• Differentiate from p-guaiacol via HPLC isomer separation data
• Provide vapor pressure data for proper hazard classification
• Confirm <1% o-guaiacol isomer content for specification compliance