(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(4-isopropylphenyl)butanoic acid CAS 1260613-56-6

Description

The occurrence of (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(4-isopropylphenyl)butanoic acid is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(4-isopropylphenyl)butanoic acid (CAS 1260613-56-6), molecular formula C28H29NO4 and molecular weight 443.53 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(4-isopropylphenyl)butanoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 443.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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