Ethyl 2-((2-ethylphenyl)amino)-2-oxoacetate CAS 140391-41-9

Purity 97%+In StockPharmaceutical Standards
CAS No.140391-41-9
Molecular FormulaC12H15NO3
Molecular Weight221.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 2-((2-ethylphenyl)amino)-2-oxoacetate CAS 140391-41-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 221.25 g/mol gives Ethyl 2-((2-ethylphenyl)amino)-2-oxoacetate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ethyl 2-((2-ethylphenyl)amino)-2-oxoacetate (CAS 140391-41-9), a certified reference material (molecular formula C12H15NO3, MW 221.25 g/mol) for analytical method development and quality control.

Ethyl 2-((2-ethylphenyl)amino)-2-oxoacetate (C12H15NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

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 FormulaC12H15NO3
Molecular Weight221.25 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1997
Nitrogen Atoms1

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