(R)-N-((R)-1-(((R)-1-Amino-3-methyl-1-oxobutan-2-yl)amino)-3-(4-hydroxyphenyl)-1-oxopropan-2-yl)pyrrolidine-2-carboxamide CAS 628282-06-4

Purity 97%+In StockPharmaceutical Standards
CAS No.628282-06-4
Molecular FormulaC19H28N4O4
Molecular Weight376.45 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(R)-N-((R)-1-(((R)-1-Amino-3-methyl-1-oxobutan-2-yl)amino)-3-(4-hydroxyphenyl)-1-oxopropan-2-yl)pyrrolidine-2-carboxamide CAS 628282-06-4 chemical structure

Description

The occurrence of (R)-N-((R)-1-(((R)-1-Amino-3-methyl-1-oxobutan-2-yl)amino)-3-(4-hydroxyphenyl)-1-oxopropan-2-yl)pyrrolidine-2-carboxamide is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

(R)-N-((R)-1-(((R)-1-Amino-3-methyl-1-oxobutan-2-yl)amino)-3-(4-hydroxyphenyl)-1-oxopropan-2-yl)pyrrolidine-2-carboxamide (CAS 628282-06-4) is a high-purity analytical reference standard with the molecular formula C19H28N4O4 and a molecular weight of 376.45 g/mol.

Based on its molecular formula C19H28N4O4, (R)-N-((R)-1-(((R)-1-Amino-3-methyl-1-oxobutan-2-yl)amino)-3-(4-hydroxyphenyl)-1-oxopropan-2-yl)pyrrolidine-2-carboxamide 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 376.45 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.

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 FormulaC19H28N4O4
Molecular Weight376.45 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Nitrogen Atoms4

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