trans-4-(4-Ethylcyclohexyl)-2,3′,4′,5′-tetrafluoro-1,1′-biphenyl CAS 174805-87-9

Description

trans-4-(4-Ethylcyclohexyl)-2,3′,4′,5′-tetrafluoro-1,1′-biphenyl (CAS 174805-87-9) is a high-purity analytical reference standard with the molecular formula C20H20F4 and a molecular weight of 336.37 g/mol.

Based on its molecular formula C20H20F4, trans-4-(4-Ethylcyclohexyl)-2,3′,4′,5′-tetrafluoro-1,1′-biphenyl contains fluorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 336.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), trans-4-(4-Ethylcyclohexyl)-2,3′,4′,5′-tetrafluoro-1,1′-biphenyl 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

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