Dapsone USP from China
Dapsone is an organo-sulfur antibacterial drug used for leprosy and dermatitis herpetiformis treatment. Its diphenylsulfone structure features sulfur directly linked to aromatic carbons, characteristic of heading 2930 organo-sulfur compounds. Designated as a drug in subheading 2930.90.92.35.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals: 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 WHO prequalification if applicable and methemoglobinemia risk disclosures for FDA review
• Label clearly as human pharmaceutical to prevent veterinary reclassification
• Avoid bulk packaging over 25kg without special stability permits