N-Aminoethylpiperazine (Purified Trace) from Mexico
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 — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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