Phenobarbital Sodium Powder
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as finished tablets or capsules
Tableted phenobarbital dosage forms are medicaments in measured doses, classified in Chapter 30 rather than bulk chemicals.
If veterinary barbiturate not specifically named
Other specifically named barbiturates for veterinary use may fall under 2933.59; chapter notes prioritize specific listings.
If containing unlisted organic bases
Other organic compounds containing nitrogen heterocyclic functions not specifically barbiturates go to catch-all heading 2942.
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Import Tips & Compliance
• 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
Related Products under HTS 2933.53.00.00
Pentobarbital Sodium USP Grade
Pentobarbital sodium is a short-acting barbiturate salt used for anesthesia and euthanasia, featuring the characteristic pyrimidine ring. Classified under HTS 2933.53.00.00 as pentobarbital (INN) salts per the explicit listing in the heading. Imported as sterile powder for injection preparation or veterinary use.
Amobarbital USP Powder
Amobarbital is an intermediate-acting barbiturate with pyrimidine ring, used for sedation and hypnosis, explicitly named in HTS 2933.53.00.00. Imported as USP-grade powder for tablet/capsule manufacturing. Chemically defined per Chapter 29 note 2(a).
Barbital Sodium Crystals
Barbital sodium, the first synthesized barbiturate, contains pyrimidine ring and is specifically named in HTS 2933.53.00.00. Used in research and legacy formulations. Imported as crystalline powder meeting pharmacopeia standards.
Pentobarbital Free Acid Form
Pentobarbital in its free acid form (non-salt) is explicitly covered under HTS 2933.53.00.00 as pentobarbital (INN). Used in synthesis of injectable formulations. Chemically pure heterocyclic compound per Chapter 29 scope.
Secobarbital Sodium Bulk API
Secobarbital sodium, a short-acting hypnotic barbiturate salt, contains the pyrimidine ring structure specified in HTS 2933.53.00.00. Used in pharmaceutical manufacturing for sleep induction medications. This is the pure active pharmaceutical ingredient imported in kilogram quantities.
Butalbital Pharmaceutical Grade
Butalbital, a short to intermediate-acting barbiturate for tension headaches, features the pyrimidine ring listed under HTS 2933.53.00.00. Bulk imported for combination with acetaminophen/caffeine in Fioricet formulations. Pure chemical compound without excipients.