4-(5-Fluoro-2-methoxyphenyl)-4-oxobutanoic acid CAS 49800-56-8

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(5-Fluoro-2-methoxyphenyl)-4-oxobutanoic acid.

4-(5-Fluoro-2-methoxyphenyl)-4-oxobutanoic acid (CAS 49800-56-8) is a high-purity analytical reference standard with the molecular formula C11H11FO4 and a molecular weight of 226.20 g/mol.

Based on its molecular formula C11H11FO4, 4-(5-Fluoro-2-methoxyphenyl)-4-oxobutanoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 226.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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