Dinonylnaphthalenesulfonic Acid from Canada
Dinonylnaphthalenesulfonic acid (DNNSA) is a branched alkyl naphthalene sulfonate used in oil additives and extractants. Falls under HTS 2904.99.47.00 as an aromatic sulfonated hydrocarbon derivative.
Duty Rate — Canada → United States
15.5%
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
• Specify branching and carbon number (C9) in SDS to distinguish from linear alkylbenzene sulfonates
• TSCA reporting required if used in metal extraction processes
• Low volatility (BP >300°C) allows standard chemical packaging without special refrigeration