High Purity Diethylenetriamine 99.5%+ from Mexico
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 — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
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