Flomoxef Impurity 44 CAS CATO-C4X-138244

Purity ＞90%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-138244
Molecular FormulaC23H28F4N4O13S2
Molecular Weight708.61 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Flomoxef Impurity 44 CAS CATO-C4X-138244 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 708.61 g/mol gives Flomoxef Impurity 44 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Flomoxef Impurity 44 (CAS CATO-C4X-138244) is a certified pharmaceutical impurity reference standard with the molecular formula C23H28F4N4O13S2 and a molecular weight of 708.61 g/mol.

Flomoxef Impurity 44 (C23H28F4N4O13S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

As a certified reference material (CRM), Flomoxef Impurity 44 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 FormulaC23H28F4N4O13S2
Molecular Weight708.61 g/mol
Purity＞90%
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentF-containing
Nitrogen Atoms4
Sulfur Atoms2

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