Benzo[4,5]thieno[2,3-b]quinoxaline CAS 243-69-6

Description

Compared with other compounds in its class, the molecular weight of 236.29 g/mol gives Benzo[4,5]thieno[2,3-b]quinoxaline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Benzo[4,5]thieno[2,3-b]quinoxaline (CAS 243-69-6), molecular formula C14H8N2S and molecular weight 236.29 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Benzo[4,5]thieno[2,3-b]quinoxaline (C14H8N2S) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 Benzo[4,5]thieno[2,3-b]quinoxaline 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

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