Sulfanilamide Powder USP from Japan
Sulfanilamide, the parent compound of all sulfonamides, provides broad-spectrum antibacterial activity. HTS 2935.90.4800 classification as prototypical sulfonamide anti-infective per Chapter 29(a). Still used topically in vaginal infections and experimentally.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• USP monograph compliance mandatory; aniline impurities strictly controlled
• Topical vs systemic documentation prevents dosage form confusion
• Historical FDA approvals support continued import legitimacy