5-Ethynylbenzo[b]thiophene CAS 1374563-50-4

Description

Compared with other compounds in its class, the molecular weight of 158.22 g/mol gives 5-Ethynylbenzo[b]thiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 5-Ethynylbenzo[b]thiophene (CAS 1374563-50-4), a certified reference material (molecular formula C10H6S, MW 158.22 g/mol) for analytical method development and quality control.

Structurally, 5-Ethynylbenzo[b]thiophene (C10H6S) contains sulfur-containing functionality, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 158.22 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), 5-Ethynylbenzo[b]thiophene 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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