8-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one CAS 91375-76-7

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 8-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one.

8-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 91375-76-7), molecular formula C8H7NO2S and molecular weight 181.21 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 8-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one (C8H7NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 181.21 g/mol, it falls into the medium-molecular-weight range. 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 8-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one 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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