Sulfadiazine Free Base from Japan
Sulfadiazine contains pyrimidine ring linked to sulfonamide, used in antibacterial treatment. HTS 2933.59.59.00 for pyrimidine drugs despite sulfur; organo-sulfur exclusion doesn't apply. Free base form for API use.
Duty Rate — Japan → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Sulfonamide analysis to confirm pyrimidine characteristic group
• Veterinary vs human grade declaration affects chapter
• Free base solubility data prevents salt misdeclaration