P-Quinone Pharmaceutical API from China
P-benzoquinone (1,4-benzoquinone) USP grade used in API synthesis for antimalarial and anticancer drugs. HTS 2914.69.21.00 applies as a simple quinone drug compound meeting Chapter 29 purity standards.
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.6094.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Volatile nature requires sealed drum shipping; include vapor pressure safety data
• Yellow needle crystals spec for purity; deviations flag as mixtures
• Hazard class 6.1 poison—full MSDS and UN packaging certification