</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2904.10.32.00/Naphthalene Trisulfonic Acid Sodium Salt/Mexico

Naphthalene Trisulfonic Acid Sodium Salt from Mexico

1,3,6-Naphthalenetrisulfonic acid trisodium salt, though containing multiple sulfo groups, classified under HTS 2904.10.32.00 per note 3. Dye manufacturing intermediate.

Duty Rate — Mexico → United States

15.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Calculate with your customs valueVerify classification with AI

Import Tips

• Confirm trisulfonation pattern via HPLC

• High water solubility (>50%) characteristic

• Dye precursor; verify end-use declaration