1-Phenyl-3-pyrazolidinone Drug Intermediate from Canada
1-Phenyl-3-pyrazolidinone is a hydrazine derivative used as intermediate in synthesis of anti-inflammatory pyrazolone drugs like phenylbutazone. Falls under HTS 2928.00.30.00 as a drug intermediate essential for pharmaceutical production.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Document synthetic pathway showing conversion to FDA-approved drug actives
• Maintain batch records traceable to GMP facilities
• Beware veterinary drug applications requiring separate FDA-CVM clearance