Phenobarbital Sodium Powder from China
Phenobarbital sodium is the sodium salt of phenobarbital, a barbiturate with a pyrimidine ring structure, used primarily as an anticonvulsant and sedative. It falls under HTS 2933.53.00.00 as it is explicitly listed as phenobarbital (INN) and its salts. This chemically defined heterocyclic compound is imported in bulk powder form for pharmaceutical manufacturing.
Duty Rate — China → United States
112.5%
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
9903.05.3112.5%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
• Provide DEA registration and end-use certificates as barbiturates are DEA Schedule IV controlled substances requiring strict import documentation
• Ensure COA (Certificate of Analysis) verifies chemical purity >98% and confirms pyrimidine structure per chapter notes
• Avoid misclassification as finished dosage forms; bulk powders must not be tableted or capsulated