Levosimendan Impurity 5 CAS CATO-C4X-13085

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-13085
Molecular FormulaC13H11NO7
Molecular Weight293.23 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Levosimendan Impurity 5 CAS CATO-C4X-13085 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 293.23 g/mol gives Levosimendan Impurity 5 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Levosimendan Impurity 5 (CAS CATO-C4X-13085) is a certified pharmaceutical impurity reference standard with the molecular formula C13H11NO7 and a molecular weight of 293.23 g/mol.

Levosimendan Impurity 5 (C13H11NO7) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC13H11NO7
Molecular Weight293.23 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms1

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