Venetoclax Impurity 113 CAS CATO-C4X-2495113

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-2495113
Molecular FormulaC26H25N5O7S
Molecular Weight551.57 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Venetoclax Impurity 113 CAS CATO-C4X-2495113 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 551.57 g/mol gives Venetoclax Impurity 113 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Venetoclax Impurity 113 (CAS CATO-C4X-2495113) is a certified pharmaceutical impurity reference standard with the molecular formula C26H25N5O7S and a molecular weight of 551.57 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Venetoclax Impurity 113 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 551.57 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

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 FormulaC26H25N5O7S
Molecular Weight551.57 g/mol
Purity≥95%
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)17.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms5
Sulfur Atoms1

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