Barbituric Acid from Mexico
Barbituric acid (malonylurea) is a heterocyclic compound with a pyrimidine ring structure, serving as the core scaffold for barbiturate pharmaceuticals. It is classified under HTS 2933.52.1000 as a separate chemically defined organic compound containing a nitrogen hetero-atom in a pyrimidine ring. Primarily used as an intermediate in synthesizing barbiturate drugs.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.60100%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
• Provide detailed chemical analysis certificates confirming purity and identity as barbituric acid to avoid misclassification
• Ensure DEA registration if destined for barbiturate production due to controlled substance regulations
• Include safety data sheets (SDS) documenting handling precautions for this pharmaceutical intermediate