4-Acetyl-5-methyl-1H-pyrazol-3(2H)-one CAS 52182-92-0

Purity 97%+In StockPharmaceutical Standards
CAS No.52182-92-0
Molecular FormulaC6H8N2O2
Molecular Weight140.14 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Acetyl-5-methyl-1H-pyrazol-3(2H)-one CAS 52182-92-0 chemical structure

Description

CATO manufactures 4-Acetyl-5-methyl-1H-pyrazol-3(2H)-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.

4-Acetyl-5-methyl-1H-pyrazol-3(2H)-one (CAS 52182-92-0) is a high-purity analytical reference standard with the molecular formula C6H8N2O2 and a molecular weight of 140.14 g/mol.

Structurally, 4-Acetyl-5-methyl-1H-pyrazol-3(2H)-one (C6H8N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 140.14 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC6H8N2O2
Molecular Weight140.14 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1971
Nitrogen Atoms2

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