2-(3-Chlorophenyl)pyrazolo[1,5-a]pyrazin-4(5H)-one CAS 1338666-87-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1338666-87-7
Molecular FormulaC12H8ClN3O
Molecular Weight245.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(3-Chlorophenyl)pyrazolo[1,5-a]pyrazin-4(5H)-one CAS 1338666-87-7 chemical structure

Description

The occurrence of 2-(3-Chlorophenyl)pyrazolo[1,5-a]pyrazin-4(5H)-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 2-(3-Chlorophenyl)pyrazolo[1,5-a]pyrazin-4(5H)-one (CAS 1338666-87-7), a certified reference material (molecular formula C12H8ClN3O, MW 245.66 g/mol) for analytical method development and quality control.

The molecular framework of 2-(3-Chlorophenyl)pyrazolo[1,5-a]pyrazin-4(5H)-one (C12H8ClN3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC12H8ClN3O
Molecular Weight245.66 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Halogen ContentCl-containing
Nitrogen Atoms3

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