4-(2,6-Difluorobenzoyl)-1-(2-fluorobenzyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one CAS 317833-46-8

Purity 97%+In StockPharmaceutical Standards
CAS No.317833-46-8
Molecular FormulaC23H17F3N2O2
Molecular Weight410.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(2,6-Difluorobenzoyl)-1-(2-fluorobenzyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one CAS 317833-46-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 410.39 g/mol gives 4-(2,6-Difluorobenzoyl)-1-(2-fluorobenzyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(2,6-Difluorobenzoyl)-1-(2-fluorobenzyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 317833-46-8), molecular formula C23H17F3N2O2 and molecular weight 410.39 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, 4-(2,6-Difluorobenzoyl)-1-(2-fluorobenzyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 410.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC23H17F3N2O2
Molecular Weight410.39 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)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF-containing
Nitrogen Atoms2

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