Protocatechuic Acid from Canada
Protocatechuic acid (3,4-dihydroxybenzoic acid) is a pure aromatic monocarboxylic acid specified in additional U.S. note 3, imported under HTS 2916.39.46.00. Used in biochemical research and as a pharmaceutical synthesis intermediate.
Duty Rate — Canada → United States
6.5%
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
• Lab-grade imports require HPLC purity certificate (≥98%)
• Declare as non-hazardous if <25% concentration in shipment
• Prevent oxidation during transport with nitrogen blanketing specification