Pharmaceutical Grade Acetylsulfisoxazole API from Japan
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 — Japan → United States
21%
Rate breakdown
9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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