Pyrazolo[1,5-a]pyrazine-3-carbonitrile CAS 1331768-75-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1331768-75-2
Molecular FormulaC7H4N4
Molecular Weight144.13 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Pyrazolo[1,5-a]pyrazine-3-carbonitrile CAS 1331768-75-2 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.

CATO supplies Pyrazolo[1,5-a]pyrazine-3-carbonitrile (CAS 1331768-75-2), a certified reference material (molecular formula C7H4N4, MW 144.13 g/mol) for analytical method development and quality control.

Pyrazolo[1,5-a]pyrazine-3-carbonitrile (C7H4N4) contains a nitrile group, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC7H4N4
Molecular Weight144.13 g/mol
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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms4

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