4-(5-fluoro-pyridin-2-yl)-piperazine-1-carboxylic acid tert-butyl ester 918502-22-4 CAS 918502-22-4

Description

Compared with other compounds in its class, the molecular weight of 281.33 g/mol gives 4-(5-fluoro-pyridin-2-yl)-piperazine-1-carboxylic acid tert-butyl ester 918502-22-4 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(5-fluoro-pyridin-2-yl)-piperazine-1-carboxylic acid tert-butyl ester 918502-22-4 (CAS 918502-22-4), molecular formula C14H20FN3O2 and molecular weight 281.33 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, 4-(5-fluoro-pyridin-2-yl)-piperazine-1-carboxylic acid tert-butyl ester 918502-22-4 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 281.33 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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