Pharmaceutical Grade Acetylsulfisoxazole API from China
High-purity acetylsulfisoxazole active pharmaceutical ingredient (API) specifically enumerated in HTS 2935.90.32.00 as a sulfonamide anti-infective drug. Used exclusively in manufacturing prescription medications for systemic bacterial infections.
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Register as API importer with FDA and maintain DMF confidentiality
• Batch testing required; provide chromatograms showing single impurity <0.1%
• Declare specifically by name to avoid general sulfonamide classification