4-(4-Chlorobenzenesulfonyl)-3-methyl-3,4-dihydro-2H-1,4-benzoxazine CAS 338747-51-6

Purity 97%+In StockPharmaceutical Standards
CAS No.338747-51-6
Molecular FormulaC15H14ClNO3S
Molecular Weight323.79 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(4-Chlorobenzenesulfonyl)-3-methyl-3,4-dihydro-2H-1,4-benzoxazine CAS 338747-51-6 chemical structure

Description

The molecular framework of 4-(4-Chlorobenzenesulfonyl)-3-methyl-3,4-dihydro-2H-1,4-benzoxazine (C15H14ClNO3S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

4-(4-Chlorobenzenesulfonyl)-3-methyl-3,4-dihydro-2H-1,4-benzoxazine (CAS 338747-51-6) is a high-purity analytical reference standard with the molecular formula C15H14ClNO3S and a molecular weight of 323.79 g/mol.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 4-(4-Chlorobenzenesulfonyl)-3-methyl-3,4-dihydro-2H-1,4-benzoxazine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC15H14ClNO3S
Molecular Weight323.79 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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