Pyrazinamide USP Antituberculosis Drug
Pyrazinamide, a pyrazine carboxamide derivative, is explicitly listed in HTS 2933.99.4200 as an anti-infective pharmaceutical. This first-line tuberculosis treatment is imported as pure USP powder for tablet manufacturing. Its aromatic heterocyclic structure with nitrogen hetero-atoms defines its Chapter 29 classification.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as pyrazine carboxamide without specific drug naming
Other aromatic pyrazine compounds classify under broader 2933.59 before specific drug provisions.
If when imported as bulk tablets rather than pure API powder
Medicaments in dosage form shift to Chapter 30, taking precedence over bulk chemicals.
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Import Tips & Compliance
• Require DMF (Drug Master File) and bioequivalence data for API imports into US tablet production
• TB drugs face heightened FDA scrutiny; ensure GMP certification from manufacturing facility
• Confirm crystal form (polymorph) matches USP monograph to avoid reclassification issues
Related Products under HTS 2933.99.42.00
Acriflavine USP Powder
Acriflavine is a fluorescent acridine dye used as an antiseptic and anti-infective agent in pharmaceutical preparations. This specific product is the pure USP-grade powder listed explicitly under HTS 2933.99.4200 as an aromatic heterocyclic compound with nitrogen hetero-atoms. It is primarily imported for use in topical antiseptics and veterinary formulations.
Acriflavine Hydrochloride Pharmaceutical Grade
Acriflavine hydrochloride is the hydrochloride salt of acriflavine, explicitly named in HTS 2933.99.4200 as an anti-infective drug. This nitrogen-heterocyclic compound serves as a topical antiseptic in wound care products and aquaculture treatments. The salt form enhances water solubility for pharmaceutical applications.
Carbadox Veterinary Antibiotic Powder 98%
Carbadox is a quinoxaline derivative antibiotic specifically listed under HTS 2933.99.4200 as an anti-infective agent. Used primarily in swine feed as a growth promotant and for bacterial infection control, this pure powder meets pharmaceutical standards. Its heterocyclic nitrogen structure qualifies it for this precise tariff classification.
Acriflavine Base Technical Grade
Technical grade acriflavine base is the non-salt form explicitly provided for in HTS 2933.99.4200. Used in industrial antiseptic formulations and aquaculture, this nitrogen-heterocyclic compound maintains the precise chemical identity required for this tariff subheading. Purity typically 95-98% for non-pharmaceutical applications.
Carbadox API for Veterinary Manufacturing
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.
Pyrazinamide Micronized Pharmaceutical Powder
Micronized pyrazinamide powder specifically listed under HTS 2933.99.4200 provides enhanced bioavailability for TB treatment formulations. Particle size reduction does not affect chemical classification as this named anti-infective heterocyclic drug. Imported for direct compression tablet production.