Naphthalene-2-Sulfonic Acid from Japan
Naphthalene-2-sulfonic acid results from sulfonation of naphthalene hydrocarbon at the 2-position, fitting HTS 2904.99.50.00 as other sulfonated hydrocarbon derivatives. Essential intermediate for dye manufacturing and as a wetting agent.
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
• Provide positional isomer confirmation (CAS 93-11-8) via HPLC chromatogram to prevent misclassification as beta-naphthol derivatives
• Use DOT-approved packaging for corrosive liquids; segregate from amines/bases during transport