Eszopiclone (S-Zopiclone) CAS 138729-47-2

Description

Compared with other compounds in its class, the molecular weight of 388.81 g/mol gives Eszopiclone (S-Zopiclone) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Eszopiclone (S-Zopiclone) (CAS 138729-47-2), a certified reference material (molecular formula C17H17ClN6O3, MW 388.81 g/mol) for analytical method development and quality control.

The molecular framework of Eszopiclone (S-Zopiclone) (C17H17ClN6O3) is characterized by a steroid core, an amide 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

As a certified reference material (CRM), Eszopiclone (S-Zopiclone) 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

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