High Purity Diethylenetriamine 99.5%+ from Canada
Ultra-high purity diethylenetriamine (>99.5%) for pharmaceutical synthesis, specifically classified as HTS 2921.29.0030 for acyclic polyamines. Its chemical purity ensures compliance with Chapter 29 note 2(a) for separate chemically defined compounds.
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
• Require GC-MS analysis certificate showing <0.1% isomers or impurities for Chapter 29 eligibility
• FDA prior notice required if ultimate use is pharmaceutical intermediates
• Avoid bulk tankers; glass-lined containers prevent metal catalysis contamination