Gentisic Acid (2,5-Dihydroxybenzoic Acid) from Canada
Gentisic acid, an aromatic dihydroxy monocarboxylic acid, qualifies under HTS 2916.39.46.00 per additional U.S. note 3 to section VI. Used as an analytical reagent, pharmaceutical intermediate, and antioxidant in formulations.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
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
• Include spectral analysis (NMR/IR) confirming structure for customs verification
• Light-sensitive; specify amber packaging on commercial invoice
• CAS 89-82-7 declaration prevents misclassification as heading 2936 compound