Gentisic Acid USP Grade from Canada
Gentisic acid (2,5-dihydroxybenzoic acid) is a chemically defined organic compound with a carboxylic acid group and phenolic hydroxy functions, classified under HTS 2918.29.2000 as a specific carboxylic acid with phenol function but without other oxygen function. It is supplied as a white crystalline powder for pharmaceutical and research applications.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide Certificate of Analysis (CoA) confirming USP purity ≥98% and chemical identity via HPLC or NMR to avoid reclassification
• Declare exact CAS number (490-79-9) and ensure packaging complies with UN 2811 toxic solid regulations for hazardous materials
• Verify no added stabilizers beyond Chapter 29 note (f) limits to prevent misclassification as mixtures under 3824