(E)-1,2-Bis(3,5-dimethylphenyl)ethene CAS 13863-27-9

Purity 97%+In StockPharmaceutical Standards
CAS No.13863-27-9
Molecular FormulaC18H20
Molecular Weight236.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-1,2-Bis(3,5-dimethylphenyl)ethene CAS 13863-27-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 236.35 g/mol gives (E)-1,2-Bis(3,5-dimethylphenyl)ethene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(E)-1,2-Bis(3,5-dimethylphenyl)ethene (CAS 13863-27-9) is a high-purity analytical reference standard with the molecular formula C18H20 and a molecular weight of 236.35 g/mol.

Based on its molecular formula C18H20, (E)-1,2-Bis(3,5-dimethylphenyl)ethene contains a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 236.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 (E)-1,2-Bis(3,5-dimethylphenyl)ethene 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

Molecular FormulaC18H20
Molecular Weight236.35 g/mol
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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1960

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