Protocatechuic Acid from Mexico
Protocatechuic acid (3,4-dihydroxybenzoic acid) is a natural phenolic acid used in cosmetics and as a biochemical reagent. HTS 2918.29.7500 covers this dihydroxybenzoic acid as a carboxylic acid with phenol function. Pure crystalline form qualifies under Chapter 29 organic compound definitions.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Certify botanical-free synthesis to avoid Chapter 32 natural color exclusions; provide melting point verification (194-196°C); comply with Prop 65 if California destination