2-Fluoro-5-(4-fluoro-3-methylphenyl)benzoic acid CAS 1179676-15-3

Description

Compared with other compounds in its class, the molecular weight of 248.22 g/mol gives 2-Fluoro-5-(4-fluoro-3-methylphenyl)benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Fluoro-5-(4-fluoro-3-methylphenyl)benzoic acid (CAS 1179676-15-3) is a high-purity analytical reference standard with the molecular formula C14H10F2O2 and a molecular weight of 248.22 g/mol.

Structurally, 2-Fluoro-5-(4-fluoro-3-methylphenyl)benzoic acid (C14H10F2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 248.22 g/mol, it falls into the medium-molecular-weight range. 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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