(4,5-Dihydro-1H-pyrazol-3-yl)triphenylphosphonium bromide CAS 32251-61-9

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (4,5-Dihydro-1H-pyrazol-3-yl)triphenylphosphonium bromide.

CATO supplies (4,5-Dihydro-1H-pyrazol-3-yl)triphenylphosphonium bromide (CAS 32251-61-9), a certified reference material (molecular formula C21H20N2PBr, MW 411.28 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, organophosphorus functionality, bromine substitution, (4,5-Dihydro-1H-pyrazol-3-yl)triphenylphosphonium bromide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 411.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

CATO manufactures (4,5-Dihydro-1H-pyrazol-3-yl)triphenylphosphonium bromide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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