(S)-Tert-butyl 4-(4-bromobenzoyl)-3-(4-chlorophenyl)piperazine-1-carboxylate CAS 2132392-79-9

Description

Compared with other compounds in its class, the molecular weight of 479.79 g/mol gives (S)-Tert-butyl 4-(4-bromobenzoyl)-3-(4-chlorophenyl)piperazine-1-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(S)-Tert-butyl 4-(4-bromobenzoyl)-3-(4-chlorophenyl)piperazine-1-carboxylate (CAS 2132392-79-9), molecular formula C22H24BrClN2O3 and molecular weight 479.79 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of (S)-Tert-butyl 4-(4-bromobenzoyl)-3-(4-chlorophenyl)piperazine-1-carboxylate (C22H24BrClN2O3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

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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