Zaleplon API
Zaleplon is a non-benzodiazepine hypnotic containing an acetylaminopyrazole structure, imported as a drug under HTS 2933.19.3500. Used for short-term insomnia treatment with pyrazole as the core heterocyclic pharmacophore.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If caffeine-like purine structure emphasized
Purine/caffeine derivatives have separate provisions.
If narcotic/sedative finished product
Dosage forms of hypnotics classify as medicaments.
If amide function primary
Acetamide derivatives may classify by functional group over heterocycle.
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Import Tips & Compliance
• Provide controlled substance documentation (Schedule IV); DEA import permit required
• Confirm acetyl group integrity and pyrazole ring stability in COA
• Use 'Pharmaceutical Reference Standard' declaration for analytical standards
Related Products under HTS 2933.19.35.00
Celecoxib Active Pharmaceutical Ingredient
Celecoxib is a selective COX-2 inhibitor used in nonsteroidal anti-inflammatory drugs for pain relief and arthritis treatment. It contains an unfused pyrazole ring in its aromatic heterocyclic structure, classifying it under HTS 2933.19.3500 as a drug. This API is imported for pharmaceutical formulation.
Rimegepant API
Rimegepant is a calcitonin gene-related peptide receptor antagonist used for acute migraine treatment. Its core structure features an aromatic pyrazole ring, qualifying under HTS 2933.19.3500 for pyrazole drugs. Imported as high-purity bulk powder for tablet manufacturing.
Fipronil Technical Grade
Fipronil is a broad-spectrum insecticide with a substituted pyrazole ring in its aromatic heterocyclic structure. Classified as a drug under HTS 2933.19.3500 when imported as technical material for veterinary/agricultural pharmaceutical formulations. Used in flea/tick treatments and crop protection.
Sildenafil Citrate API
Sildenafil citrate, the active ingredient in Viagra, contains a pyrazolo[4,3-d]pyrimidine structure but classifies under unfused pyrazole HTS 2933.19.3500 as a pharmaceutical drug. Used for erectile dysfunction and pulmonary hypertension treatment.
Rabeprazole Sodium API
Rabeprazole sodium, a proton pump inhibitor for GERD treatment, features a substituted 2-pyridylmethylsulfinyl benzimidazole but retains pyrazole classification under HTS 2933.19.3500 when pyrazole motif dominates. Imported for tablet production.
Viagra Generic API (Sildenafil Base)
Pharmaceutical-grade sildenafil base (non-citrate form) for generic erectile dysfunction medications contains unfused pyrazole ring structure under HTS 2933.19.3500. Bulk imported for salt formation and tablet compression.