4-Methyl-2H-benzo[b][1,4]thiazin-3(4H)-one CAS 37142-87-3

Purity 97%+In StockPharmaceutical Standards
CAS No.37142-87-3
Molecular FormulaC9H9NOS
Molecular Weight179.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Methyl-2H-benzo[b][1,4]thiazin-3(4H)-one CAS 37142-87-3 chemical structure

Description

CATO supplies 4-Methyl-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 37142-87-3), a certified reference material (molecular formula C9H9NOS, MW 179.24 g/mol) for analytical method development and quality control.

The molecular framework of 4-Methyl-2H-benzo[b][1,4]thiazin-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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

As a certified reference material (CRM), 4-Methyl-2H-benzo[b][1,4]thiazin-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.

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.)1967
Nitrogen Atoms1
Sulfur Atoms1

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