5-Oxo-2,5-dihydro-1H-pyrazole-3-carboxylic Acid CAS 37832-55-6

Purity 97%+In StockPharmaceutical Standards
CAS No.37832-55-6
Molecular FormulaC4H6N2O3
Molecular Weight130.10 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Oxo-2,5-dihydro-1H-pyrazole-3-carboxylic Acid CAS 37832-55-6 chemical structure

Description

The occurrence of 5-Oxo-2,5-dihydro-1H-pyrazole-3-carboxylic Acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 5-Oxo-2,5-dihydro-1H-pyrazole-3-carboxylic Acid (CAS 37832-55-6), a certified reference material (molecular formula C4H6N2O3, MW 130.10 g/mol) for analytical method development and quality control.

Based on its molecular formula C4H6N2O3, 5-Oxo-2,5-dihydro-1H-pyrazole-3-carboxylic Acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 130.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 5-Oxo-2,5-dihydro-1H-pyrazole-3-carboxylic Acid 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 FormulaC4H6N2O3
Molecular Weight130.10 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1967
Nitrogen Atoms2

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