2-isopropyl-5-methyl-4H-pyrazol-3-one CAS 934-41-8

Purity 97%+In StockPharmaceutical Standards
CAS No.934-41-8
Molecular FormulaC7H12N2O
Molecular Weight140.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-isopropyl-5-methyl-4H-pyrazol-3-one CAS 934-41-8 chemical structure

Description

The molecular framework of 2-isopropyl-5-methyl-4H-pyrazol-3-one (C7H12N2O) is characterized by an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 supplies 2-isopropyl-5-methyl-4H-pyrazol-3-one (CAS 934-41-8), a certified reference material (molecular formula C7H12N2O, MW 140.18 g/mol) for analytical method development and quality control.

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.

As a certified reference material (CRM), 2-isopropyl-5-methyl-4H-pyrazol-3-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC7H12N2O
Molecular Weight140.18 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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957
Nitrogen Atoms2

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