1-Phenyl-3-pyrazolidinone Drug Intermediate from China
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 — China → United States
3.7%
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
• 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