Diethyl 2-(((4-benzoyl-5-methyl-1H-pyrrol-3-yl)amino)methylene)malonate CAS 131169-01-2

Purity 97%+In StockPharmaceutical Standards
CAS No.131169-01-2
Molecular FormulaC20H22N2O5
Molecular Weight370.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Diethyl 2-(((4-benzoyl-5-methyl-1H-pyrrol-3-yl)amino)methylene)malonate CAS 131169-01-2 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Diethyl 2-(((4-benzoyl-5-methyl-1H-pyrrol-3-yl)amino)methylene)malonate (CAS 131169-01-2), molecular formula C20H22N2O5 and molecular weight 370.40 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Diethyl 2-(((4-benzoyl-5-methyl-1H-pyrrol-3-yl)amino)methylene)malonate (C20H22N2O5) is characterized by a flavonoid core, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Physical & Chemical Properties

Molecular FormulaC20H22N2O5
Molecular Weight370.40 g/mol
AppearancePale yellow to yellow crystalline powder
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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1994
Nitrogen Atoms2

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