Semicarbazide Hydrochloride USP from Mexico
Semicarbazide hydrochloride, a hydrazinecarboxamide derivative, functions as a reagent in pharmaceutical carbonyl assays and synthesis of semicarbazone drugs. Classified under HTS 2928.00.30.00 for its USP-grade drug testing applications.
Duty Rate — Mexico → 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 USP/NF monograph compliance certificate
• Declare as toxic reagent with proper GHS labeling
• Avoid bulk packaging over 25kg to maintain pharma classification