Arotinolol Impurity 77 CAS CATO-C4X-185477

Description

Compared with other compounds in its class, the molecular weight of 404.90 g/mol gives Arotinolol Impurity 77 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Arotinolol Impurity 77 (CAS CATO-C4X-185477), a pharmacopoeial impurity reference standard (molecular formula C8H5Br3O2S, MW 404.90 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Arotinolol Impurity 77 (C8H5Br3O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 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 404.90 g/mol, it falls into the moderately-high-molecular-weight range. 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

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