Gallic Acid from Canada
Gallic acid (3,4,5-trihydroxybenzoic acid) is a chemically defined aromatic monocarboxylic acid covered by additional U.S. note 3 to section VI, classifying under HTS 2916.39.46.00. Essential for ink manufacturing, tanning agents, and antioxidant applications.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Specify tannic acid content (<0.5%) to maintain chapter 29 classification
• Hygroscopic; invoice must detail moisture content and storage conditions
• CAS 149-91-7 verification prevents chapter 32 tannin classification