Other derivatives of malonylurea (barbituric acid); salts thereof
Heterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: > Other derivatives of malonylurea (barbituric acid); salts thereof
Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2933.54.00.00
Phenobarbital USP
Phenobarbital is a barbituric acid derivative used primarily as an anticonvulsant and sedative medication. It falls under HTS 2933.54.00.00 as a derivative of malonylurea (barbituric acid). This classification applies to the pure chemical compound in pharmaceutical-grade form.
Phenobarbital Sodium Powder
The sodium salt of phenobarbital, used in injectable formulations and as an intermediate in pharmaceutical manufacturing. Classified under HTS 2933.54.00.00 as a salt of barbituric acid derivatives per Chapter 29 notes.
Pentobarbital Sodium USP
Pentobarbital sodium, a short-acting barbiturate derivative of malonylurea used in veterinary euthanasia and medical sedation. HTS 2933.54.00.00 covers this as a barbituric acid salt.
Secobarbital USP
Secobarbital, a barbituric acid derivative used as a short-acting sedative-hypnotic. Falls under HTS 2933.54.00.00 as a derivative of malonylurea with the characteristic pyrimidine ring structure.
Butabarbital Sodium
Intermediate-acting barbiturate sodium salt used in sedative formulations. Classified as a malonylurea derivative salt under HTS 2933.54.00.00 per Chapter 29 classification rules.
Amobarbital USP
Amobarbital, a long-acting barbituric acid derivative used for sedation and hypnosis. HTS 2933.54.00.00 applies to this pyrimidine-ring containing malonylurea derivative.
Barbital (Barbitone)
Barbital, the diethyl derivative of barbituric acid, historically used as a sedative. Pure chemical form classified under HTS 2933.54.00.00 as a malonylurea derivative.
Thiopental Sodium
Thiopental sodium, a thiobarbiturate used as an intravenous anesthetic. The sulfur substitution maintains classification under HTS 2933.54.00.00 as a barbituric acid derivative.
Hexobarbital
Hexobarbital, a short-acting barbiturate derivative used in research and historically in medicine. Classified under HTS 2933.54.00.00 due to its malonylurea parent structure.
Vinbarbital
Vinbarbital, a methylated barbituric acid derivative with sedative properties. Falls under HTS 2933.54.00.00 as a derivative of malonylurea per the pyrimidine ring classification.