Carbhydrazide Pharmaceutical Grade from Mexico
Carbhydrazide is a bifunctional hydrazine derivative used in synthesis of antitubercular drugs and as oxygen scavenger in pharmaceutical water systems. It qualifies as a drug under HTS 2928.00.30.00 for medicinal 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
• Include USP <1231> water system validation for pharma use justification
• Certify endotoxin-free (<0.5 EU/mg) for injectable drug manufacturing
• Monitor REACH compliance for EU transshipments