6-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one, sodium salt CAS 265317-73-5

Purity 97%+In StockPharmaceutical Standards
CAS No.265317-73-5
Molecular FormulaC8H7NO2S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one, sodium salt CAS 265317-73-5 chemical structure

Description

As a certified reference material (CRM), 6-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one, sodium salt 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.

6-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one, sodium salt (CAS 265317-73-5), molecular formula C8H7NO2SNa and molecular weight 204.20 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 6-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one, sodium salt (C8H7NO2SNa) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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.

Physical & Chemical Properties

Molecular FormulaC8H7NO2S Na
Molecular Weight204.20 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms1
Sulfur Atoms1

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