</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2935.50.00.00/N-Ethylperfluorooctane Sulfonamide (EtFOSA)/Mexico

N-Ethylperfluorooctane Sulfonamide (EtFOSA) from Mexico

EtFOSA serves as a degradation product marker and synthetic intermediate in PFAS research. Meets HTS 2935.50.00.00 criteria as a separate, chemically defined perfluorooctane sulfonamide.

Duty Rate — Mexico → United States

16.5%

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

• Provide isotope dilution mass spec data for trace analysis grade material

• Segregate from flammable solvents during transport

• Declare <0.1% PFOA impurities per EPA method 533

N-Ethylperfluorooctane Sulfonamide (EtFOSA) from Mexico — Import Duty Rate | HTS 2935.50.00.00