High Purity Diethylenetriamine 99.5%+ from China
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 — China → United States
125%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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