5-(4-Methoxyphenyl)-1,3-diphenyl-1H-pyrazole CAS 27301-46-8

Purity 97%+In StockPharmaceutical Standards
CAS No.27301-46-8
Molecular FormulaC22H18N2O
Molecular Weight326.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(4-Methoxyphenyl)-1,3-diphenyl-1H-pyrazole CAS 27301-46-8 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-(4-Methoxyphenyl)-1,3-diphenyl-1H-pyrazole.

CATO supplies 5-(4-Methoxyphenyl)-1,3-diphenyl-1H-pyrazole (CAS 27301-46-8), a certified reference material (molecular formula C22H18N2O, MW 326.39 g/mol) for analytical method development and quality control.

The molecular framework of 5-(4-Methoxyphenyl)-1,3-diphenyl-1H-pyrazole (C22H18N2O) 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 its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

As a certified reference material (CRM), 5-(4-Methoxyphenyl)-1,3-diphenyl-1H-pyrazole 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

Molecular FormulaC22H18N2O
Molecular Weight326.39 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964
Nitrogen Atoms2

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