4-bromo-1H-indazole-3-carboxylic acid CAS 885521-80-2

Description

The occurrence of 4-bromo-1H-indazole-3-carboxylic acid is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-bromo-1H-indazole-3-carboxylic acid (CAS 885521-80-2), molecular formula C8H13BrN2O2 and molecular weight 249.11 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H13BrN2O2, 4-bromo-1H-indazole-3-carboxylic acid contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 249.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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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