Methadone Intermediate (4-Cyano-2-Dimethylamino-4,4-Diphenylbutane) Powder from China
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 — China → United States
41.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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