Fenproporex (INN) and its salts; methadone (INN) intermediate (4-cyano-2-dimethylamino-4,4-diphenylbutane)
Other organo-inorganic compounds. > Halogenated organo-phosphorous derivatives : > Methylphosphonic dichloride > Fenproporex (INN) and its salts; methadone (INN) intermediate (4-cyano-2-dimethylamino-4,4-diphenylbutane) > Fenproporex (INN) and its salts; methadone (INN) intermediate (4-cyano-2-dimethylamino-4,4-diphenylbutane)
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Products classified under Tariff item 2926.30
4-Cyano-2-dimethylamino-4,4-diphenylbutane
4-Cyano-2-dimethylamino-4,4-diphenylbutane is a specific nitrile-function organic compound explicitly named in tariff item 2926.30.00 as methadone (INN) intermediate. It is used primarily as an intermediate in the synthesis of methadone, a pharmaceutical opioid. This compound is classified directly under this tariff item.
2926.30.004-Cyano-2-dimethylamino-4,4-diphenylbutane Hydrochloride
The hydrochloride salt of 4-cyano-2-dimethylamino-4,4-diphenylbutane is a chemically defined salt of the methadone intermediate. Tariff item 2926.30.00 covers the methadone intermediate and its salts, making this hydrochloride salt classifiable under this item. It is classified as a salt of the named compound.
2926.30.00Fenproporex Acetate
Fenproporex acetate is the acetic acid salt of fenproporex (INN), a nitrile-function organic compound. As a salt of a named INN compound, it is classified under tariff item 2926.30.00, which covers fenproporex and its salts. This form is used as a volatile analytical standard in toxicology laboratories.
2926.30.00Fenproporex Base Powder
Pure fenproporex base is the free amine form of this INN nitrile compound, explicitly named in tariff item 2926.30.00. As a separate chemically defined organic compound with a nitrile function, it falls directly under this item. It is used in research and analytical applications.
2926.30.00Fenproporex Citrate
Fenproporex citrate is a stable salt formed between fenproporex (INN) and citric acid. Tariff item 2926.30.00 covers fenproporex and its salts, making this citrate salt classifiable under this item. It is used in analytical standards for doping control testing.
2926.30.00Fenproporex Free Base Analytical Grade
Analytical grade fenproporex base with purity above 99.5% is the INN compound itself, explicitly covered by tariff item 2926.30.00. This high-purity form is essential for synthesis of radiolabeled tracers in PET imaging research. It is packaged under nitrogen to prevent oxidation.
2926.30.00Fenproporex Hydrochloride
Fenproporex hydrochloride is the salt form of fenproporex, a chemically defined nitrile-function organic compound. Tariff item 2926.30.00 explicitly covers fenproporex and its salts, making this hydrochloride salt classifiable under this item. It was historically used as an appetite suppressant.
2926.30.00Fenproporex Mesylate
Fenproporex mesylate, or methanesulfonate salt, is a salt of fenproporex (INN) and is covered by tariff item 2926.30.00. This form is commonly used in forensic reference standards due to its high purity. The mesylate counterion provides distinct handling properties.
2926.30.00Fenproporex Phosphate
Fenproporex phosphate is a phosphate salt of fenproporex, a chemically defined derivative captured by tariff item 2926.30.00. This salt form is suitable for pharmaceutical intermediate synthesis. Its nitrile group defines the classification within Chapter 29.
2926.30.00Fenproporex Precursor Base (4-Cyano-2-Dimethylamino-4,4-Diphenylbutane)
4-Cyano-2-dimethylamino-4,4-diphenylbutane serves a dual role as a precursor for both fenproporex and methadone production. Tariff item 2926.30.00 explicitly names this compound as the methadone intermediate, covering it directly. It is classified under this item due to its explicit chemical identification.
2926.30.00Fenproporex Sulfate Salt
Fenproporex sulfate is an acidic salt derivative of fenproporex (INN), a nitrile-function compound explicitly listed in tariff item 2926.30.00. This form enhances stability for laboratory synthesis of anorectic agents. It is classified as a salt of the named INN compound.
2926.30.00Fenproporex Tartrate
Fenproporex tartrate is the tartrate salt of fenproporex (INN), qualifying under tariff item 2926.30.00 for its status as an INN salt with nitrile function. This chiral salt form aids in resolution during synthesis. It is imported as GMP-grade material for veterinary applications.
2926.30.00High-Purity Fenproporex HCl Reference Standard
High-purity fenproporex HCl reference standard is a certified reference material of fenproporex hydrochloride at 99.9% purity. As a salt of fenproporex (INN), it falls under tariff item 2926.30.00. It is used for calibration in anti-doping and forensic analysis and comes with ISO 17034 accreditation.
2926.30.00Methadone Intermediate (4-Cyano-2-Dimethylamino-4,4-Diphenylbutane) Powder
High-purity powdered 4-cyano-2-dimethylamino-4,4-diphenylbutane is a nitrile-function compound serving as the key intermediate for methadone synthesis. Tariff item 2926.30.00 explicitly covers this compound as the methadone intermediate. It is classified under this item due to its chemical structure and named status.