4-(4-Ethylcyclohexyl)-4'-fluoro-1,1'-biphenyl CAS 81793-57-9

Description

Compared with other compounds in its class, the molecular weight of 282.40 g/mol gives 4-(4-Ethylcyclohexyl)-4'-fluoro-1,1'-biphenyl distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(4-Ethylcyclohexyl)-4'-fluoro-1,1'-biphenyl (CAS 81793-57-9), molecular formula C20H23F and molecular weight 282.40 g/mol, is a CATO reference standard with documented purity and traceability.

4-(4-Ethylcyclohexyl)-4'-fluoro-1,1'-biphenyl (C20H23F) contains fluorine substitution, a polycyclic aromatic system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

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

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