(E)-1,2-Di([1,1'-biphenyl]-4-yl)ethene CAS 1657-71-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1657-71-2
Molecular FormulaC26H20
Molecular Weight332.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-1,2-Di([1,1'-biphenyl]-4-yl)ethene CAS 1657-71-2 chemical structure

Description

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.

(E)-1,2-Di([1,1'-biphenyl]-4-yl)ethene (CAS 1657-71-2) is a high-purity analytical reference standard with the molecular formula C26H20 and a molecular weight of 332.44 g/mol.

Owing to a polycyclic aromatic system, (E)-1,2-Di([1,1'-biphenyl]-4-yl)ethene is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 332.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), (E)-1,2-Di([1,1'-biphenyl]-4-yl)ethene 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 FormulaC26H20
Molecular Weight332.44 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)17.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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