Loprazolam (INN), mecloqualone (INN), methaqualone (INN) and zipeprol (INN); 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: > Loprazolam (INN), mecloqualone (INN), methaqualone (INN) and zipeprol (INN); salts thereof > Loprazolam (INN), mecloqualone (INN), methaqualone (INN) and zipeprol (INN); salts thereof
Duty Rate (from China)
Products classified under Tariff item 2933.55
Loprazolam Base
Loprazolam base is a chemically defined organic compound with a pyrimidine ring in its structure, listed by name (INN) under tariff item 2933.55.00. It is a hypnotic agent used primarily as a reference standard or in pharmaceutical research. The compound contains only nitrogen hetero-atoms in its ring system, consistent with Chapter 29 notes.
2933.55.00Loprazolam Ethanesulfonate
Loprazolam ethanesulfonate is a salt of loprazolam (INN), a pyrimidine-containing heterocyclic compound. Under Chapter 29, salts of named organic compounds are classified with the parent compound. The salt retains the nitrogen hetero-atom ring structure and is covered by the 'salts thereof' provision of tariff item 2933.55.00.
2933.55.00Mecloqualone Free Base
Mecloqualone free base is a chemically defined compound with a pyrimidine ring, listed by name (INN) under tariff item 2933.55.00. It is a sedative used as a reference standard in analytical testing. The compound has only nitrogen hetero-atoms in its ring structure, consistent with Chapter 29 classification.
2933.55.00Mecloqualone Mesylate Salt
Mecloqualone mesylate is a salt of mecloqualone (INN), a pyrimidine-containing heterocyclic compound. Chapter 29 notes state that salts of organic compounds are classified with the parent compound. The mesylate salt is covered by the 'salts thereof' provision of tariff item 2933.55.00.
2933.55.00Methaqualone Base (Pure)
Methaqualone base is a chemically defined organic compound with a fused pyrimidine ring, listed by name (INN) under tariff item 2933.55.00. It is a synthetic sedative used primarily as a reference standard. The compound contains only nitrogen hetero-atoms in its ring structure, meeting Chapter 29 requirements.
2933.55.00Methaqualone Hydrochloride
Methaqualone hydrochloride is the salt form of methaqualone (INN), a pyrimidine-containing heterocyclic compound. Under Chapter 29, salts of named compounds are classified with the parent compound. The hydrochloride salt is covered by the 'salts thereof' provision of tariff item 2933.55.00.
2933.55.00Methaqualone Phosphate
Methaqualone phosphate is a stable salt of methaqualone (INN), a pyrimidine-containing heterocyclic compound. Chapter 29 notes classify salts of named organic compounds with the parent compound. The phosphate salt is covered by the 'salts thereof' provision of tariff item 2933.55.00.
2933.55.00Methaqualone Sulfate
Methaqualone sulfate is a salt of methaqualone (INN), a pyrimidine-containing heterocyclic compound. Under Chapter 29, salts of named organic compounds are classified with the parent compound. The sulfate salt is covered by the 'salts thereof' provision of tariff item 2933.55.00.
2933.55.00Zipeprol Dihydrochloride
Zipeprol dihydrochloride is the di-salt form of zipeprol (INN), an antitussive agent with a piperazine ring in its structure. Tariff item 2933.55.00 covers zipeprol (INN) and its salts. The compound contains only nitrogen hetero-atoms, consistent with Chapter 29 classification.
2933.55.00Zipeprol Hydrochloride
Zipeprol hydrochloride is a salt of zipeprol (INN), an antitussive agent with a piperazine ring. Tariff item 2933.55.00 covers zipeprol (INN) and its salts. The compound contains only nitrogen hetero-atoms in its ring structure, meeting Chapter 29 requirements.