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Zaleplon

Drug ingredient

CAS 151319-34-5

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

Molecular structure of 151319-34-5
US productionNot reported
Import value, 2024$7.6B
Top sourceIreland 61%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293359 · basket

These shares come from HS customs code 293359, which covers 295 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 61%IrelandCH 30%SwitzerlandGB 2%United KingdomCN 2%ChinaIN 1%India
13 FDA-registered drug labelers
A-S Medication Solutions
Aurobindo Pharma Limited
Bionpharma Inc.
Bryant Ranch Prepack
Centaur Pharmaceuticals Private Limited
Chromo Laboratories India Private Limited
Hikma Pharmaceuticals USA Inc.
PD-Rx Pharmaceuticals, Inc.
Preferred Pharmaceuticals Inc.
Rising Pharma Holdings, Inc.
TAPI Hungary Industries Kft.
Teva Pharmaceutical Works Private Limited Company
Unichem Pharmaceuticals (USA), Inc.

Why It Matters

Sectors
Health
Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

  • •Zaleplon
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS151319-34-5
PubChem CID5719
DTXSIDDTXSID5023748
FormulaC17H15N5O
Mol. Weight305.33 g/mol
SMILESCCN(C1=CC=CC(=C1)C2=CC=NC3=C(C=NN23)C#N)C(=O)C

Data Sources

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Brief citations

Zaleplon (CAS 151319-34-5) https://chemicalindependence.com/chemical/151319-34-5/ PubChem: 5719. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5719 FDA National Drug Code directory: CAS 151319-34-5. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293359 for CAS 151319-34-5. Reporting year: 2024. https://usatrade.census.gov/