2-((3-Acetylphenyl)amino)-2-oxoethyl 2-phenylbutanoate CAS 380168-83-2

Purity 97%+In StockPharmaceutical Standards
CAS No.380168-83-2
Molecular FormulaC20H21NO4
Molecular Weight339.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-((3-Acetylphenyl)amino)-2-oxoethyl 2-phenylbutanoate CAS 380168-83-2 chemical structure

Description

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.

2-((3-Acetylphenyl)amino)-2-oxoethyl 2-phenylbutanoate (CAS 380168-83-2), molecular formula C20H21NO4 and molecular weight 339.39 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C20H21NO4, 2-((3-Acetylphenyl)amino)-2-oxoethyl 2-phenylbutanoate contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 339.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC20H21NO4
Molecular Weight339.39 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
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms1

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