Guaiacol Formaldehyde from Canada
Guaiacol-formaldehyde refers to condensation products or protected forms used in resin synthesis and pharmaceutical intermediates. As chemically defined guaiacol derivatives maintaining ether-phenol function, under HTS 2909.50.20.00. Industrial resin precursor import.
Duty Rate — Canada → United States
15.5%
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
• Molecular weight analysis required to distinguish monomer from polymeric resin
• Hazardous material declaration if free formaldehyde exceeds safety limits