4-(4-Bromo-1H-pyrazol-1-yl)-N-isopropylbenzenesulfonamide CAS 1187385-75-6

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(4-Bromo-1H-pyrazol-1-yl)-N-isopropylbenzenesulfonamide.

4-(4-Bromo-1H-pyrazol-1-yl)-N-isopropylbenzenesulfonamide (CAS 1187385-75-6) is a high-purity analytical reference standard with the molecular formula C12H14BrN3O2S and a molecular weight of 344.23 g/mol.

The molecular framework of 4-(4-Bromo-1H-pyrazol-1-yl)-N-isopropylbenzenesulfonamide (C12H14BrN3O2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 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. 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 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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