Propyphenazone from China
Propyphenazone is an N-propyl derivative of phenazone used in combination analgesics. It qualifies for HTS 2933.11.00.00 as a direct phenazone derivative with the unfused pyrazole ring structure specified in the heading. Typically imported in crystalline powder form for drug formulation.
Duty Rate — China → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Submit GC-MS analysis proving derivative relationship to phenazone; ensure GMP-compliant manufacturing certification; watch for EU REACH registration requirements