(3-Methoxyphenyl)(phenyl)phosphinic acid CAS 4552-91-4

Description

Compared with other compounds in its class, the molecular weight of 248.21 g/mol gives (3-Methoxyphenyl)(phenyl)phosphinic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(3-Methoxyphenyl)(phenyl)phosphinic acid (CAS 4552-91-4) is a high-purity analytical reference standard with the molecular formula C13H13O3P and a molecular weight of 248.21 g/mol.

Structurally, (3-Methoxyphenyl)(phenyl)phosphinic acid (C13H13O3P) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.5, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 248.21 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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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