Methadone Intermediate (4-Cyano-2-Dimethylamino-4,4-Diphenylbutane) Powder from Japan
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.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Use UN-approved packaging for powders to prevent dusting; include MSDS with emetic identifiers if required for safety
• Verify batch purity >98% with HPLC certificates to match tariff's chemically defined compound requirement
• Avoid bulk packaging over 25kg drums, as it may raise diversion concerns during CBP examination