5-Fluoro-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-7-sulfonyl chloride CAS 2387596-46-3

Purity 97%+In StockPharmaceutical Standards
CAS No.2387596-46-3
Molecular FormulaC8H5ClFNO4S
Molecular Weight265.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Fluoro-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-7-sulfonyl chloride CAS 2387596-46-3 chemical structure

Description

The occurrence of 5-Fluoro-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-7-sulfonyl chloride is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 5-Fluoro-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-7-sulfonyl chloride (CAS 2387596-46-3), a certified reference material (molecular formula C8H5ClFNO4S, MW 265.65 g/mol) for analytical method development and quality control.

Based on its molecular formula C8H5ClFNO4S, 5-Fluoro-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-7-sulfonyl chloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 265.65 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), 5-Fluoro-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-7-sulfonyl chloride 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 FormulaC8H5ClFNO4S
Molecular Weight265.65 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1999
Halogen ContentF/Cl-containing
Nitrogen Atoms1
Sulfur Atoms1

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