2,3-Dicyano-5,6-diphenylpyrazine 5,6-Diphenyl-2,3-dicyanopyrazine 5,6-Diphenyl-2,3-pyrazinedicarbonitrile 52197-23-6 NSC 173949 CAS 52197-23-6

Purity 97%+In StockPharmaceutical Standards
CAS No.52197-23-6
Molecular FormulaC18H10N4
Molecular Weight282.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,3-Dicyano-5,6-diphenylpyrazine
5,6-Diphenyl-2,3-dicyanopyrazine
5,6-Diphenyl-2,3-pyrazinedicarbonitrile
52197-23-6
NSC 173949 CAS 52197-23-6 chemical structure

Description

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.

2,3-Dicyano-5,6-diphenylpyrazine 5,6-Diphenyl-2,3-dicyanopyrazine 5,6-Diphenyl-2,3-pyrazinedicarbonitrile 52197-23-6 NSC 173949 (CAS 52197-23-6), molecular formula C18H10N4 and molecular weight 282.30 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C18H10N4, 2,3-Dicyano-5,6-diphenylpyrazine 5,6-Diphenyl-2,3-dicyanopyrazine 5,6-Diphenyl-2,3-pyrazinedicarbonitrile 52197-23-6 NSC 173949 contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 282.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO manufactures 2,3-Dicyano-5,6-diphenylpyrazine 5,6-Diphenyl-2,3-dicyanopyrazine 5,6-Diphenyl-2,3-pyrazinedicarbonitrile 52197-23-6 NSC 173949 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 FormulaC18H10N4
Molecular Weight282.30 g/mol
AppearancePale yellow to yellow crystalline powder
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)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1971
Nitrogen Atoms4

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