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

Carbadox API for Veterinary Manufacturing from Mexico

Carbadox Active Pharmaceutical Ingredient (API) for veterinary premix production, specifically named in HTS 2933.99.4200. This anti-infective heterocyclic compound is imported in bulk for medicated feed manufacturing. Meets pharmacopeial standards for purity and stability.

Duty Rate — Mexico → United States

10%

Rate breakdown

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

Import Tips

CVM NADA approval required for end-use; import under Investigational New Animal Drug if experimental

Stability studies mandatory due to carbadox degradation; document <0.5% hydrazone impurities

Segregate from human drug shipments to avoid cross-contamination regulatory issues