Fenproporex (INN) and its salts
Nitrile-function compounds: > Fenproporex (INN) and its salts; Methadone (INN) intermediate (4-cyano-2-dimethylamino-4,4- diphenylbutane): > Fenproporex (INN) and its salts
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2926.30.10.00
Fenproporex Hydrochloride
Fenproporex hydrochloride is the salt form of fenproporex, a chemically defined nitrile-function organic compound used historically as an appetite suppressant. It falls under HTS 2926.30.10.00 as a specific INN compound and its salts within the nitrile-function compounds heading. This pure pharmaceutical intermediate is supplied as a white crystalline powder for research or formulation purposes.
Fenproporex Base Powder
Pure fenproporex base is the free amine form of this amphetamine-derived nitrile compound, classified under HTS 2926.30.10.00 for its specific INN status. As a separate chemically defined organic compound with a nitrile function, it is imported for synthetic chemistry or pharmaceutical research. It appears as an off-white powder soluble in organic solvents.
Fenproporex Sulfate Salt
Fenproporex sulfate is an acidic salt derivative of the INN fenproporex, a nitrile-function compound explicitly listed in HTS 2926.30.10.00. This form enhances stability for laboratory synthesis of anorectic agents. It complies with chapter notes for salts of organic compounds classified with the base compound.
Fenproporex Citrate
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.
Fenproporex Phosphate
This phosphate salt of fenproporex is a chemically defined derivative captured by HTS 2926.30.10.00, suitable for pharmaceutical intermediate synthesis. Its nitrile group defines the classification within Chapter 29's subchapter for nitrile-functions. Supplied in amber glass vials to prevent degradation.
Fenproporex Mesylate
Fenproporex mesylate, or methanesulfonate salt, is specified under HTS 2926.30.10.00 as a salt of the INN nitrile compound. Commonly used in forensic reference standards due to high purity. The mesylate counterion provides excellent crystallinity for analytical applications.
Fenproporex Tartrate
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.
Fenproporex Acetate
Fenproporex acetate is the acetic acid salt of this controlled INN nitrile, classified in HTS 2926.30.10.00. Used as a volatile form for GC-MS standards in toxicology labs. Its acetate improves handling in non-aqueous environments.
High-Purity Fenproporex HCl Reference Standard
Certified reference material of fenproporex hydrochloride at 99.9% purity, under HTS 2926.30.10.00 for INN salts. Used by labs for calibration in anti-doping and forensic analysis. Comes with ISO 17034 accreditation certificate.
Fenproporex Free Base Analytical Grade
Analytical grade fenproporex base (>99.5% purity) classified as the INN compound in HTS 2926.30.10.00. Essential for synthesis of radiolabeled tracers in PET imaging research. Packaged under nitrogen to prevent oxidation.