4-Bromo-3-oxo-2,3-dihydro-1H-indazole-5-carbonitrile CAS 2756657-93-7

Description

Based on its molecular formula C8H4BrN3O, 4-Bromo-3-oxo-2,3-dihydro-1H-indazole-5-carbonitrile contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 238.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

4-Bromo-3-oxo-2,3-dihydro-1H-indazole-5-carbonitrile (CAS 2756657-93-7), molecular formula C8H4BrN3O and molecular weight 238.04 g/mol, is a CATO reference standard with documented purity and traceability.

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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