1,4-Bis((E)-2-methylstyryl)benzene CAS 66726-71-4

Purity 97%+In StockPharmaceutical Standards
CAS No.66726-71-4
Molecular FormulaC24H22
Molecular Weight310.43 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,4-Bis((E)-2-methylstyryl)benzene CAS 66726-71-4 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 1,4-Bis((E)-2-methylstyryl)benzene.

1,4-Bis((E)-2-methylstyryl)benzene (CAS 66726-71-4) is a high-purity analytical reference standard with the molecular formula C24H22 and a molecular weight of 310.43 g/mol.

The molecular framework of 1,4-Bis((E)-2-methylstyryl)benzene (C24H22) is characterized by a polycyclic aromatic system. 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.

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

Molecular FormulaC24H22
Molecular Weight310.43 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1976

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