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 > Other derivatives of malonylurea (barbituric acid); salts thereof
Duty Rate (from China)
Products classified under Tariff item 2933.54
Amobarbital USP
Amobarbital is a long-acting barbituric acid derivative used for sedation and hypnosis. It contains the pyrimidine ring structure characteristic of malonylurea derivatives, qualifying it for classification under tariff item 2933.54.00.
2933.54.00Barbital (Barbitone)
Barbital, also known as barbitone, is the diethyl derivative of barbituric acid and a classic sedative. As a malonylurea derivative with a pyrimidine ring, it is correctly classified under tariff item 2933.54.00.
2933.54.00Butabarbital Sodium
Butabarbital sodium is the sodium salt of a barbituric acid derivative used in sedative formulations. As a salt of a malonylurea derivative, it falls under tariff item 2933.54.00 per Chapter 29 classification rules for salts of organic compounds.
2933.54.00Hexobarbital
Hexobarbital is a short-acting barbiturate used in research and historically in medicine. Its structure is based on malonylurea with a pyrimidine ring, making it classifiable under tariff item 2933.54.00.
2933.54.00Pentobarbital Sodium USP
Pentobarbital sodium is a short-acting barbiturate salt used in veterinary euthanasia and medical sedation. As a salt of a barbituric acid derivative, it is classified under tariff item 2933.54.00.
2933.54.00Phenobarbital Sodium Powder
Phenobarbital sodium is the sodium salt of phenobarbital, used in injectable formulations and as an intermediate in pharmaceutical manufacturing. It is a salt of a barbituric acid derivative, classifying under tariff item 2933.54.00.
2933.54.00Phenobarbital USP
Phenobarbital is a barbituric acid derivative used as an anticonvulsant and sedative. It is a derivative of malonylurea with a pyrimidine ring, falling under tariff item 2933.54.00.
2933.54.00Secobarbital USP
Secobarbital is a barbituric acid derivative used as a short-acting sedative-hypnotic. It contains the pyrimidine ring structure of malonylurea derivatives, classifying under tariff item 2933.54.00.
2933.54.00Thiopental Sodium
Thiopental sodium is a thiobarbiturate used as an intravenous anesthetic. The sulfur substitution in the molecule does not remove it from the malonylurea derivative class, so it falls under tariff item 2933.54.00.
2933.54.00Vinbarbital
Vinbarbital is a methylated barbituric acid derivative with sedative properties. Its pyrimidine ring and malonylurea core make it classifiable under tariff item 2933.54.00.