Guaiacol USP Grade from Mexico
Guaiacol is a naturally occurring organic compound classified as an ether-phenol, used primarily as an expectorant in cough syrups and as a chemical intermediate. It falls under HTS 2909.50.4500 as a chemically defined ether-phenol product listed in additional U.S. note 3 to section VI. This monomethoxy phenol derivative is essential in pharmaceutical and flavor applications.
Duty Rate — Mexico → United States
5.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify USP grade certification and provide detailed chemical analysis (COA) to confirm classification under additional U.S. note 3
• Ensure proper labeling with CAS number (90-05-1) and purity percentage to avoid reclassification as a mixture
• Obtain FDA prior notice for pharmaceutical-grade imports and check REACH compliance for EU-sourced material