4-Hydroxybenzoic Acid from Canada
4-Hydroxybenzoic acid is an aromatic compound used as a preservative precursor in parabens production. Falls under HTS 2918.99.4700 as a carboxylic acid with phenolic oxygen function. Pure form aligns with Chapter 29(a) for chemically defined organics.
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
• CAS 99-96-7 documentation required; test for isomers to confirm single compound status
• Bulk chemical entry needs EPA TSCA; pitfall is retail packs shifting to 3824
• Specify crystal form in invoice to avoid confusion with esters in other subheadings