Benzenesulfonic Acid from Canada
Benzenesulfonic acid is the simplest aromatic sulfonic acid, derived from benzene hydrocarbon through sulfonation. Classified under HTS 2904.99.50.00 as a sulfonated derivative of hydrocarbons in the 'other' subcategory. Used in manufacturing detergents, dyes, and pharmaceuticals.
Duty Rate — Canada → United States
13.7%
Rate breakdown
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
• Submit Certificate of Analysis verifying >98% purity to distinguish from mixtures classifiable in Chapter 38
• Declare proper UN number (UN 2796) and pack in compatible HDPE/PTFE containers to prevent reaction with metals
• Avoid common pitfall of incorrect Chapter 28 classification by providing structural formula showing direct C-S bond