Metanilamide from Canada
Metanilamide (3-aminobenzenesulfonamide) is a specific sulfonamide isomer listed under HTS 2935.90.10.00 within Chapter 29's sulfonamides provision. This chemically defined compound features meta-positioned amino and sulfonamide groups on benzene. Used in biochemical research and as a sulfanilamide analogue.
Duty Rate — Canada → 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
• Laboratory/research end-use certification helps distinguish from bulk pharmaceutical intermediates
• Molecular formula (C6H8N2O2S) and NMR spectra documentation confirms structural identity
• Small quantity imports (<1kg) may qualify for simplified documentation procedures