4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-hydroxy-3-methylbutanoic acid CAS 1489662-38-5

Description

CATO supplies 4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-hydroxy-3-methylbutanoic acid (CAS 1489662-38-5), a certified reference material (molecular formula C20H21NO5, MW 355.38 g/mol) for analytical method development and quality control.

Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-hydroxy-3-methylbutanoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 355.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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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