2-Methyl-2H-1,4-benzothiazin-3(4H)-one CAS 7028-57-1

Purity 97%+In StockPharmaceutical Standards
CAS No.7028-57-1
Molecular FormulaC9H9NOS
Molecular Weight179.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Methyl-2H-1,4-benzothiazin-3(4H)-one CAS 7028-57-1 chemical structure

Description

As a certified reference material (CRM), 2-Methyl-2H-1,4-benzothiazin-3(4H)-one 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.

CATO supplies 2-Methyl-2H-1,4-benzothiazin-3(4H)-one (CAS 7028-57-1), a certified reference material (molecular formula C9H9NOS, MW 179.24 g/mol) for analytical method development and quality control.

The molecular framework of 2-Methyl-2H-1,4-benzothiazin-3(4H)-one (C9H9NOS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Physical & Chemical Properties

Molecular FormulaC9H9NOS
Molecular Weight179.24 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959
Nitrogen Atoms1
Sulfur Atoms1

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