Cadaverine Hydrochloride from Mexico
Cadaverine hydrochloride, salt of 1,5-diaminopentane, is an acyclic polyamine derivative under HTS 2921.29.00.55 per Chapter salt classification rules.
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
• Include DEA exemption letter if used in controlled substance synthesis
• Classify hydrochloride salt with base compound per Chapter note C(1)
• Provide biohazard handling protocols despite chemical classification