2-Chloro-4-amino-5-hydroxybenzenesulfonamide from Mexico
Halogenated and hydroxylated sulfonamide explicitly named in HTS 2935.90.10.00, featuring chloro, amino, and hydroxy substitutions. Chapter 29 classification per sulfonamide heading and specific tariff listing. Intermediate for pharmaceutical synthesis.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: 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
• Chloro compound hazard classification requires proper UN number declaration
• Batch-specific HPLC chromatograms verify isomeric purity and structure
• Intellectual property declarations for patented pharmaceutical intermediates