Fenproporex Citrate from Mexico
Fenproporex citrate combines the INN compound with citric acid, forming a stable salt under HTS 2926.30.10.00 for nitrile-function compounds and salts. Used in analytical standards for doping control testing. This biocompatible salt improves aqueous solubility over the hydrochloride.
Duty Rate — Mexico → United States
0%
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
• Provide HPLC purity certificate (>99%) to confirm chemical identity
• Register with CBP for controlled substance precursors
• Use UN-approved packaging for Schedule IV analogs during transport