Guaiacol Phosphate from Canada
Guaiacol phosphate is a phosphorylated derivative used in antitussive formulations, classified under HTS 2922.50.19.00 for its guaiacol base with oxygen function. It fits 'drugs: other' as a pharmaceutical intermediate.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Analyze phosphorus content to confirm derivative status
• pH-adjust to neutral for stability; include buffering agent declaration
• Avoid water-dissolved forms, which may reclassify per note (d)