</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Dinonylnaphthalenesulfonic Acid from Mexico

Dinonylnaphthalenesulfonic acid is a high molecular weight aromatic sulfonic acid under HTS 2904.10.32.00. Used in metal extraction and oil additives.

Duty Rate — Mexico → United States

15.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Confirm two C9 alkyl chains on naphthalene ring

Viscosity specification critical for classification

Hazardous material shipping (viscous liquid)