1-(4-Bromophenyl)-3-(p-tolyl)-1H-pyrazol-5-amine CAS 618098-19-4

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(4-Bromophenyl)-3-(p-tolyl)-1H-pyrazol-5-amine.

1-(4-Bromophenyl)-3-(p-tolyl)-1H-pyrazol-5-amine (CAS 618098-19-4) is a high-purity analytical reference standard with the molecular formula C16H14BrN3 and a molecular weight of 328.21 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution, 1-(4-Bromophenyl)-3-(p-tolyl)-1H-pyrazol-5-amine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 328.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

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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