(S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-methoxyphenyl)propanoic acid CAS 206060-41-5

Description

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.

(S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-methoxyphenyl)propanoic acid (CAS 206060-41-5), molecular formula C25H23NO5 and molecular weight 417.45 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-methoxyphenyl)propanoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 417.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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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