Diethyl 2-(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)malonate CAS 6139-70-4

Purity 97%+In StockPharmaceutical Standards
CAS No.6139-70-4
Molecular FormulaC22H22N2O6
Molecular Weight410.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Diethyl 2-(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)malonate CAS 6139-70-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 410.42 g/mol gives Diethyl 2-(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)malonate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Diethyl 2-(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)malonate (CAS 6139-70-4), a certified reference material (molecular formula C22H22N2O6, MW 410.42 g/mol) for analytical method development and quality control.

Structurally, Diethyl 2-(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)malonate (C22H22N2O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 410.42 g/mol, it falls into the moderately-high-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.

As a certified reference material (CRM), Diethyl 2-(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)malonate 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 FormulaC22H22N2O6
Molecular Weight410.42 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore in a cool place (≤25°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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms2

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