Oxyquinoline Sulfate Pharmaceutical Grade from China
Oxyquinoline sulfate is a quinoline-based antimicrobial agent listed under HTS 2933.49.20.00, featuring the required nitrogen heterocyclic ring structure. Used in pharmaceuticals for its bacteriostatic properties, it qualifies as a named drug in this specific tariff subcategory.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Provide salt content verification (sulfate assay) and pH stability data for pharma imports
• Comply with USP/NF monographs; ensure packaging prevents moisture absorption
• Avoid bulk chemical declaration—pharma grade requires drug-specific documentation