4-Cyano-2-dimethylamino-4,4-diphenylbutane from Canada
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.
Duty Rate — Canada → United States
Rate breakdown
Import Tips
• 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