5-Chloro-3-methylbenzo[d]thiazol-2(3H)-one CAS 2786-28-9

Purity 97%+In StockPharmaceutical Standards
CAS No.2786-28-9
Molecular FormulaC8H6ClNOS
Molecular Weight199.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Chloro-3-methylbenzo[d]thiazol-2(3H)-one CAS 2786-28-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 199.66 g/mol gives 5-Chloro-3-methylbenzo[d]thiazol-2(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Chloro-3-methylbenzo[d]thiazol-2(3H)-one (CAS 2786-28-9), molecular formula C8H6ClNOS and molecular weight 199.66 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 5-Chloro-3-methylbenzo[d]thiazol-2(3H)-one (C8H6ClNOS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. 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.

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 5-Chloro-3-methylbenzo[d]thiazol-2(3H)-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

Molecular FormulaC8H6ClNOS
Molecular Weight199.66 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
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.)1957
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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