Fenproporex Tartrate from Canada
The tartrate salt of fenproporex qualifies under HTS 2926.30.10.00 for its status as an INN salt with nitrile function. This chiral salt form aids in resolution during synthesis. Imported as GMP-grade material for veterinary research analogs.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: 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
• Validate enantiomeric excess (>99%ee) for chiral imports
• Coordinate with FDA for IND-supporting shipments
• Declare as 'non-narcotic' despite amphetamine structure