4-Aminoantipyrine from Canada
4-Aminoantipyrine (4-amino-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one) contains unfused pyrazolone ring structure, classified HTS 2933.19.90.00 as other pyrazole compound. Widely used as analytical reagent for phenol detection and cholesterol determination in clinical labs.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include USP/NF certificate of analysis for diagnostic reagent applications
• Declare intended laboratory use to qualify for potential research duty reductions
• Highly water-soluble - specify storage conditions (<25°C, desiccated) on SDS