Protocatechuic Acid from China
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 — China → United States
44%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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