3-Oxo-3,4-dihydroquinoxaline-2-carbonitrile CAS 34731-47-0

Purity 97%+In StockPharmaceutical Standards
CAS No.34731-47-0
Molecular FormulaC9H5N3O
Molecular Weight171.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Oxo-3,4-dihydroquinoxaline-2-carbonitrile CAS 34731-47-0 chemical structure

Description

The molecular framework of 3-Oxo-3,4-dihydroquinoxaline-2-carbonitrile (C9H5N3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

3-Oxo-3,4-dihydroquinoxaline-2-carbonitrile (CAS 34731-47-0), molecular formula C9H5N3O and molecular weight 171.16 g/mol, is a CATO reference standard with documented purity and traceability.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO manufactures 3-Oxo-3,4-dihydroquinoxaline-2-carbonitrile under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC9H5N3O
Molecular Weight171.16 g/mol
AppearancePale yellow to yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1966
Nitrogen Atoms3

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