</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2904.99.50.00/Naphthalene-2-Sulfonic Acid/Canada

Naphthalene-2-Sulfonic Acid from Canada

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 — Canada → United States

13.7%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Calculate with your customs valueVerify classification with AI

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

Naphthalene-2-Sulfonic Acid from Canada — Import Duty Rate | HTS 2904.99.50.00