methyl 6-bromo-4-oxo-3,4-dihydro-1H-2-benzothiopyran-3-carboxylate CAS 1909337-23-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1909337-23-0
Molecular FormulaC11H9BrO3S
Molecular Weight301.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

methyl 6-bromo-4-oxo-3,4-dihydro-1H-2-benzothiopyran-3-carboxylate CAS 1909337-23-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 301.16 g/mol gives methyl 6-bromo-4-oxo-3,4-dihydro-1H-2-benzothiopyran-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies methyl 6-bromo-4-oxo-3,4-dihydro-1H-2-benzothiopyran-3-carboxylate (CAS 1909337-23-0), a certified reference material (molecular formula C11H9BrO3S, MW 301.16 g/mol) for analytical method development and quality control.

The molecular framework of methyl 6-bromo-4-oxo-3,4-dihydro-1H-2-benzothiopyran-3-carboxylate (C11H9BrO3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

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), methyl 6-bromo-4-oxo-3,4-dihydro-1H-2-benzothiopyran-3-carboxylate 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 FormulaC11H9BrO3S
Molecular Weight301.16 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1995
Halogen ContentBr-containing
Sulfur Atoms1

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