(3-Bromo-1-methyl-1H-pyrazol-4-yl)methanol CAS 1781654-27-0

Description

Compared with other compounds in its class, the molecular weight of 191.03 g/mol gives (3-Bromo-1-methyl-1H-pyrazol-4-yl)methanol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(3-Bromo-1-methyl-1H-pyrazol-4-yl)methanol (CAS 1781654-27-0), molecular formula C5H7BrN2O and molecular weight 191.03 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of (3-Bromo-1-methyl-1H-pyrazol-4-yl)methanol (C5H7BrN2O) is characterized by 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. 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.

As a certified reference material (CRM), (3-Bromo-1-methyl-1H-pyrazol-4-yl)methanol 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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