2-methyl-4H-pyrazolo[1,5-a]pyrimidin-5-one CAS 189116-35-6

Purity 97%+In StockPharmaceutical Standards
CAS No.189116-35-6
Molecular FormulaC7H13N3O
Molecular Weight155.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-methyl-4H-pyrazolo[1,5-a]pyrimidin-5-one CAS 189116-35-6 chemical structure

Description

2-methyl-4H-pyrazolo[1,5-a]pyrimidin-5-one (CAS 189116-35-6), molecular formula C7H13N3O and molecular weight 155.20 g/mol, is a CATO reference standard with documented purity and traceability.

2-methyl-4H-pyrazolo[1,5-a]pyrimidin-5-one (C7H13N3O) contains an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

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 2-methyl-4H-pyrazolo[1,5-a]pyrimidin-5-one 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 FormulaC7H13N3O
Molecular Weight155.20 g/mol
AppearanceWhite to pale 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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)2011
Nitrogen Atoms3

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