3-Bromo-1-methyl-4-nitro-1H-indazole CAS 74209-19-1

Description

3-Bromo-1-methyl-4-nitro-1H-indazole (CAS 74209-19-1), molecular formula C8H6BrN3O2 and molecular weight 256.06 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 3-Bromo-1-methyl-4-nitro-1H-indazole (C8H6BrN3O2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide 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. 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.

As a certified reference material (CRM), 3-Bromo-1-methyl-4-nitro-1H-indazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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