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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If non-aromatic ring structure
Saturated heterocyclic compounds classified separately from aromatic ones
If imported as compounded tablets
Finished dosage forms regardless of composition move to Chapter 30
If ester function predominates classification
Certain benzodiazepine precursors classified by ketone/ester function first
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Import Tips & Compliance
• Provide comprehensive impurity profile; secure advance DEA authorization; label clearly as Bulk Drug Substance to maintain Chapter 29 classification
Related Products 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.
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.