Ethyl 6-chloro-4-(4-methoxybenzenesulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate CAS 866134-51-2

Description

As a certified reference material (CRM), Ethyl 6-chloro-4-(4-methoxybenzenesulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate 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.

CATO supplies Ethyl 6-chloro-4-(4-methoxybenzenesulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate (CAS 866134-51-2), a certified reference material (molecular formula C18H18ClNO6S, MW 411.86 g/mol) for analytical method development and quality control.

The molecular framework of Ethyl 6-chloro-4-(4-methoxybenzenesulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate (C18H18ClNO6S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

Physical & Chemical Properties

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