N-Aminoethylpiperazine (Purified Trace) from Canada
High-purity N-aminoethylpiperazine with <0.1% cyclic impurities qualifies as acyclic diamine derivative under HTS 2921.19.61.95 per chemical definition precedence.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit HPLC chromatogram showing cyclic piperazine <0.5% area to prove acyclic dominance
• Classify as UN 2815 toxic liquid with inhalation hazard for quantities >5L
• Validate batch molecular weight against theoretical 129.21 g/mol