Fmoc-2-amino-5-phenyl(2,5-Difluoro)-L-pentanoic acid CAS 2350817-95-5

Description

The occurrence of Fmoc-2-amino-5-phenyl(2,5-Difluoro)-L-pentanoic acid is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Fmoc-2-amino-5-phenyl(2,5-Difluoro)-L-pentanoic acid (CAS 2350817-95-5), molecular formula C26H23F2NO4 and molecular weight 451.46 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Fmoc-2-amino-5-phenyl(2,5-Difluoro)-L-pentanoic acid (C26H23F2NO4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 451.46 g/mol, it falls into the moderately-high-molecular-weight range. 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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