4-Cyano-2-dimethylamino-4,4-diphenylbutane Hydrochloride from Japan
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.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Include salt formation details and pH stability data in import documentation to confirm classification as the named base equivalent
• Monitor for anti-caking agents; if added beyond stabilization needs, it may trigger reclassification per Chapter Note 1(f)