2-(1-((S)-1-(2-Chlorophenyl)-2-methoxy-2-oxoethyl)-4-mercaptopiperidin-3-ylidene)acetic acid CAS 1147350-77-3

Description

2-(1-((S)-1-(2-Chlorophenyl)-2-methoxy-2-oxoethyl)-4-mercaptopiperidin-3-ylidene)acetic acid (CAS 1147350-77-3), molecular formula C16H18ClNO4S and molecular weight 355.84 g/mol, is a CATO reference standard with documented purity and traceability.

2-(1-((S)-1-(2-Chlorophenyl)-2-methoxy-2-oxoethyl)-4-mercaptopiperidin-3-ylidene)acetic acid (C16H18ClNO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine 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. 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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