Bumetanide Impurity 111 CAS CATO-C4X-1986111

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-1986111
Molecular FormulaC18H21N3O6S
Molecular Weight407.44 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Bumetanide Impurity 111 CAS CATO-C4X-1986111 chemical structure

Description

The occurrence of Bumetanide Impurity 111 is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Bumetanide Impurity 111 (CAS CATO-C4X-1986111), a pharmacopoeial impurity reference standard (molecular formula C18H21N3O6S, MW 407.44 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Bumetanide Impurity 111 (C18H21N3O6S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 407.44 g/mol, it falls into the moderately-high-molecular-weight range. 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).

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

As a certified reference material (CRM), Bumetanide Impurity 111 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 FormulaC18H21N3O6S
Molecular Weight407.44 g/mol
Purity97%+
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
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms3
Sulfur Atoms1

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