2-({1-[(2,2-difluoro-2H-1,3-benzodioxol-5-yl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}formamido)-2,3-dimethylbutanamide CAS 956181-54-7

Purity 97%+In StockPharmaceutical Standards
CAS No.956181-54-7
Molecular FormulaC20H21F2N3O5
Molecular Weight421.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-({1-[(2,2-difluoro-2H-1,3-benzodioxol-5-yl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}formamido)-2,3-dimethylbutanamide CAS 956181-54-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 421.39 g/mol gives 2-({1-[(2,2-difluoro-2H-1,3-benzodioxol-5-yl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}formamido)-2,3-dimethylbutanamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-({1-[(2,2-difluoro-2H-1,3-benzodioxol-5-yl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}formamido)-2,3-dimethylbutanamide (CAS 956181-54-7) is a high-purity analytical reference standard with the molecular formula C20H21F2N3O5 and a molecular weight of 421.39 g/mol.

The molecular framework of 2-({1-[(2,2-difluoro-2H-1,3-benzodioxol-5-yl)methyl]-2-oxo-1,2-dihydropyridin-3-yl}formamido)-2,3-dimethylbutanamide (C20H21F2N3O5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. 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 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 FormulaC20H21F2N3O5
Molecular Weight421.39 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentF-containing
Nitrogen Atoms3

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