Dotinurad Impurity 24 CAS 4433-53-8

Description

Compared with other compounds in its class, the molecular weight of 169.20 g/mol gives Dotinurad Impurity 24 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Dotinurad Impurity 24 (CAS 4433-53-8), a pharmacopoeial impurity reference standard (molecular formula C7H7NO2S, MW 169.20 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Dotinurad Impurity 24 (C7H7NO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 169.20 g/mol, it falls into the medium-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).

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

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