Phenobarbital Intermediate (5-Ethyl-5-phenylbarbituric Acid) from Mexico
This barbituric acid derivative serves as key intermediate for phenobarbital synthesis, featuring ethyl and phenyl substitutions on the cyclic amide ring. HTS 2924.29.95.00 covers it as unspecified cyclic amide. DEA List I chemical.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%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
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• DEA 222 form required; chemical import license; end-user verification mandatory