Guaiacyl Acetate from Mexico
Guaiacyl acetate is the acetyl ester derivative of guaiacol, used as an intermediate in organic synthesis and historical antitussive formulations. As an ester of ether-phenol per chapter note 5(A), it follows guaiacol classification under HTS 2909.50.20.00. Imported for fine chemical manufacturing.
Duty Rate — Mexico → United States
15.5%
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
• Include esterification reaction scheme proving derivation from guaiacol parent compound
• Verify acetylation doesn't introduce functions shifting to later oxygen-function headings
• Declare exact acetyl content; impurities may affect duty rate within ether-phenol category