Protocatechuic Acid from Mexico
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 — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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