Guaifenesin USP from Japan
Guaifenesin, or 3-(2-methoxyphenoxy)-1,2-propanediol, is a guaiacol derivative serving as an expectorant in cough medications, falling under HTS 2922.50.19.00 as an aromatic amino-compound with oxygen function. It meets 'drugs: other' criteria due to its pharmaceutical application.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide FDA Drug Master File (DMF) references and USP certificate for bulk API imports
• Label with exact CAS number (93-14-1) and ensure cGMP compliance documentation
• Avoid misdeclaration as finished dosage form, which shifts to Chapter 30