4-Cyano-2-dimethylamino-4,4-diphenylbutane
This is a specific nitrile-function organic compound used primarily as an intermediate in the synthesis of methadone (INN), a pharmaceutical opioid. It falls under HTS 2926.30.2000 as it is explicitly named in the tariff description for methadone intermediates with a cyano group directly linked to the carbon chain. The compound consists of a butane backbone with dimethylamino, diphenyl, and cyano substituents, meeting Chapter 29 requirements for separate chemically defined compounds.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a salt form rather than the base compound
Salts of fenproporex or methadone intermediates are classified separately under 2926.90.2500 per subheading structure, following Chapter Note 1(C)(1) for organic salts.
If containing a heterocyclic ring structure
Compounds with nitrogen heterocyclic rings (e.g., if cyclized) shift to Chapter 29 heading 2933 for heterocyclic compounds with nitrogen hetero-atom(s) only.
If put up in measured doses or packings for retail therapeutic use
Organic compounds used as medicaments in dosage form exclude from Chapter 29 per note 2(e) and classify under Chapter 30 as pharmaceutical products.
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Import Tips & Compliance
• Obtain DEA registration and prior approval for imports due to its status as a controlled substance precursor; ensure all shipments include chemical purity certificates
• Provide detailed end-use statements certifying pharmaceutical manufacturing to avoid scrutiny under anti-diversion regulations
Related Products under HTS 2926.30.20.00
Methadone Intermediate (4-Cyano-2-Dimethylamino-4,4-Diphenylbutane) Powder
High-purity powdered form of 4-cyano-2-dimethylamino-4,4-diphenylbutane, a nitrile-function compound serving as the key intermediate for methadone synthesis. Explicitly covered by HTS 2926.30.2000 due to its chemical structure and pharmaceutical application. Meets Chapter 29 criteria as a separate chemically defined organic compound without exclusions.
4-Cyano-2-dimethylamino-4,4-diphenylbutane Hydrochloride
The hydrochloride salt form of 4-cyano-2-dimethylamino-4,4-diphenylbutane, a chemically defined salt of the methadone intermediate. Classified under HTS 2926.30.2000 as the base compound's salt, per Chapter Note 1(C)(1) directing salts to the heading of the parent organic compound. Used in pharmaceutical production with added stabilizer for safe transport.
Fenproporex Precursor Base (4-Cyano-2-Dimethylamino-4,4-Diphenylbutane)
4-Cyano-2-dimethylamino-4,4-diphenylbutane serving dual role as precursor for both fenproporex (appetite suppressant) and methadone production. Tariffed under HTS 2926.30.2000 for its explicit chemical identification as a nitrile-function methadone intermediate. Qualifies under Chapter 29 as a pure organic compound used in hormone-related pharmaceutical synthesis.