Other
Heterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Other: > Drugs: > Drugs primarily affecting the central nervous system: > Other
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 2933.99.70.00
Diazepam USP
Diazepam is a benzodiazepine derivative classified as a heterocyclic compound with nitrogen hetero-atoms, specifically an aromatic fused ring system. It acts primarily on the central nervous system as an anxiolytic, muscle relaxant, and anticonvulsant. This pharmaceutical falls under HTS 2933.99.70.00 as a drug affecting the CNS.
Lorazepam Powder
Lorazepam is a 1,4-benzodiazepine used for anxiety disorders and sedation, featuring a fused heterocyclic nitrogen ring system. As a bulk active pharmaceutical ingredient primarily affecting the CNS, it qualifies under this HTS subheading for aromatic CNS drugs. Imported typically for pharmaceutical formulation.
Clonazepam API
Clonazepam, a nitrobenzodiazepine anticonvulsant, contains fused heterocyclic rings with nitrogen hetero-atoms only. Primarily used for seizure disorders and panic attacks via CNS depression. Bulk powder form for drug manufacturing classified here as aromatic CNS drug.
Alprazolam Bulk Chemical
Alprazolam, a triazolobenzodiazepine for anxiety and panic disorders, features a unique fused heterocyclic system with nitrogen atoms. Acts on GABA receptors in CNS; imported as micronized powder for tablet production under this CNS drug subheading.
Zolpidem Tartrate API
Zolpidem, an imidazopyridine hypnotic, contains non-benzodiazepine heterocyclic nitrogen rings affecting CNS sleep centers. Used for short-term insomnia treatment; bulk tartrate salt form classified as aromatic CNS drug per chapter notes on salts.
Triazolam Micronized Powder
Triazolam, short-acting benzodiazepine for insomnia, features triazolo-fused heterocyclic nitrogen system. CNS depressant imported as micronized API for rapid dissolution in formulations under this tariff provision.
Midazolam Hydrochloride
Midazolam HCl, water-soluble benzodiazepine for sedation and anesthesia, contains imidazobenzodiazepine nitrogen heterocycles. CNS effects via GABA enhancement; hydrochloride salt follows parent base classification.
Flunitrazepam Base
Flunitrazepam, potent benzodiazepine hypnotic, features nitro-substituted fused nitrogen heterocycles. Primarily CNS depressant; bulk base form for international pharmaceutical supply chain.