Dinonylnaphthalenesulfonic Acid from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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