3-Furoic Acid from Canada
3-Furoic acid features carboxylic acid at position 3 of aromatic furan ring, used in pharmaceutical intermediates. Unfused ring with oxygen hetero-atom only. HTS 2932.19.10.00 designation.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Position-specific isomer certification via NMR essential
• Higher melting point than 2-isomer requires temperature specs
• Pharma-grade needs DMF filing references