(S)-2-Amino-4,4-difluorobutanoic acid CAS 121960-22-3

Description

Compared with other compounds in its class, the molecular weight of 139.10 g/mol gives (S)-2-Amino-4,4-difluorobutanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(S)-2-Amino-4,4-difluorobutanoic acid (CAS 121960-22-3) is a high-purity analytical reference standard with the molecular formula C4H7F2NO2 and a molecular weight of 139.10 g/mol.

(S)-2-Amino-4,4-difluorobutanoic acid (C4H7F2NO2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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