</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2921.45.90.10/High Assay Tobias Acid 99.5%/Mexico

High Assay Tobias Acid 99.5% from Mexico

Premium 99.5% assay Tobias acid for direct black dye synthesis. Meets Chapter 29 criteria as separate chemically defined compound under HTS 2921.45.90.10. Low isomer content <0.1%.

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

• HPLC chromatogram required showing <0.05% β-naphthylamine (carcinogen)

• ICH Q3C residual solvent limits strictly enforced

• NMT 50 ppm iron; stainless steel manufacturing equipment verification

High Assay Tobias Acid 99.5% from Mexico — Import Duty Rate | HTS 2921.45.90.10