Protocatechuic Acid from Mexico
Protocatechuic acid (3,4-dihydroxybenzoic acid) features adjacent hydroxyl groups ortho to each other on the benzene ring. Included in HTS 2028.19.20.00 per U.S. note 3 as aromatic carboxylic acid with alcohol function. Used in antioxidants and biochemical research.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Catechol structure (ortho-dihydroxy); distinguish from resorcinol types
• Often plant-derived; provide extraction method to avoid natural product reclassification
• Research chemical imports need end-user statements for DEA watchlist monitoring