5-Methoxy-2-(4-(4-methoxyphenyl)-5-methyl-1H-pyrazol-3-yl)phenol CAS 385401-32-1

Description

Compared with other compounds in its class, the molecular weight of 310.35 g/mol gives 5-Methoxy-2-(4-(4-methoxyphenyl)-5-methyl-1H-pyrazol-3-yl)phenol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Methoxy-2-(4-(4-methoxyphenyl)-5-methyl-1H-pyrazol-3-yl)phenol (CAS 385401-32-1) is a high-purity analytical reference standard with the molecular formula C18H18N2O3 and a molecular weight of 310.35 g/mol.

The molecular framework of 5-Methoxy-2-(4-(4-methoxyphenyl)-5-methyl-1H-pyrazol-3-yl)phenol (C18H18N2O3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. 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.

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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