Zipeprol Dihydrochloride
Zipeprol dihydrochloride is the di-salt form of zipeprol (INN), an antitussive agent with piperazine ring in its heterocyclic nitrogen-only structure. It is classified in HTS 2933.55.00.00 as a specifically enumerated compound or salt, compliant with chapter notes for pure organic compounds. Imported for pharmacological research.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified by piperazine function alone
Piperazine-specific heading precedes; classified in last occurring numerical heading per chapter rule.
If in bulk medicinal form for repacking
Medicinal preparations not purely chemical fall under Chapter 30 exclusions from pure compounds.
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Import Tips & Compliance
• Ensure ICH Q3D elemental impurities testing; declare as fine chemical not cosmetic
• Common issue: incorrect salt form declaration leads to duty disputes
Related Products under HTS 2933.55.00.00
Methaqualone Hydrochloride
Methaqualone hydrochloride is the salt form of methaqualone, a quinazolinone derivative containing a pyrimidine ring, used historically as a sedative-hypnotic. It falls under HTS 2933.55.00.00 as a specifically named compound with nitrogen hetero-atom(s) only in a pyrimidine structure, per chapter notes limiting classification to separate chemically defined organic compounds. This pure pharmaceutical salt is imported for research or controlled medical purposes.
Methaqualone Base (Pure)
Pure methaqualone (INN) is a synthetic quinazolinone sedative with a fused pyrimidine ring structure. Classified under HTS 2933.55.00.00 for its specific naming as a heterocyclic nitrogen compound with pyrimidine ring, adhering to chapter notes for separate chemically defined organic compounds. Imported primarily for forensic analysis or pharmaceutical reference standards.
Mecloqualone Mesylate Salt
Mecloqualone mesylate is a salt of mecloqualone (INN), a non-benzodiazepine sedative featuring a pyrimidine ring in its heterocyclic structure. It qualifies for HTS 2933.55.00.00 as a named compound or salt thereof, fitting chapter notes for organic compounds with nitrogen hetero-atoms only. Used in analytical chemistry and toxicology studies.
Loprazolam Ethanesulfonate
Loprazolam ethanesulfonate is the sulfonate salt of loprazolam (INN), a benzodiazepine-like hypnotic with pyrimidine ring structure. Under HTS 2933.55.00.00 for named compounds containing pyrimidine or piperazine rings, as per chapter definitions for heterocyclic nitrogen compounds. Strictly for laboratory and reference use.
Methaqualone Sulfate
Methaqualone sulfate salt provides stability for the sedative methaqualone (INN) with its characteristic pyrimidine ring. Falls under HTS 2933.55.00.00 per salts thereof provision for named heterocyclic compounds with nitrogen hetero-atoms. Used exclusively in certified lab settings.
Mecloqualone Free Base
Pure mecloqualone free base (INN) is a heterocyclic compound featuring pyrimidine ring, used as reference standard. HTS 2933.55.00.00 applies to this chemically defined named substance with nitrogen hetero-atoms only. For analytical and forensic import.