4-Methyl-N-(2-(4-oxo-4H-benzo[d][1,3]oxazin-2-yl)phenyl)benzenesulfonamide CAS 3808-20-6

Purity 97%+In StockPharmaceutical Standards
CAS No.3808-20-6
Molecular FormulaC21H16N2O4S
Molecular Weight392.43 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Methyl-N-(2-(4-oxo-4H-benzo[d][1,3]oxazin-2-yl)phenyl)benzenesulfonamide CAS 3808-20-6 chemical structure

Description

The occurrence of 4-Methyl-N-(2-(4-oxo-4H-benzo[d][1,3]oxazin-2-yl)phenyl)benzenesulfonamide is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Methyl-N-(2-(4-oxo-4H-benzo[d][1,3]oxazin-2-yl)phenyl)benzenesulfonamide (CAS 3808-20-6) is a high-purity analytical reference standard with the molecular formula C21H16N2O4S and a molecular weight of 392.43 g/mol.

Based on its molecular formula C21H16N2O4S, 4-Methyl-N-(2-(4-oxo-4H-benzo[d][1,3]oxazin-2-yl)phenyl)benzenesulfonamide contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 392.43 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.

CATO manufactures 4-Methyl-N-(2-(4-oxo-4H-benzo[d][1,3]oxazin-2-yl)phenyl)benzenesulfonamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC21H16N2O4S
Molecular Weight392.43 g/mol
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)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms2
Sulfur Atoms1

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