Methyl 2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzoate CAS 19077-61-3

Purity 97%+In StockPharmaceutical Standards
CAS No.19077-61-3
Molecular FormulaC12H9NO4
Molecular Weight231.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzoate CAS 19077-61-3 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Methyl 2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzoate.

CATO supplies Methyl 2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzoate (CAS 19077-61-3), a certified reference material (molecular formula C12H9NO4, MW 231.20 g/mol) for analytical method development and quality control.

Structurally, Methyl 2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzoate (C12H9NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 231.20 g/mol, it falls into the medium-molecular-weight range. 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.

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.

Physical & Chemical Properties

Molecular FormulaC12H9NO4
Molecular Weight231.20 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 methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms1

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