(S)-2-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-fluorophenyl)acetic acid CAS 872359-16-5

Purity 97%+In StockPharmaceutical Standards
CAS No.872359-16-5
Molecular FormulaC23H18FNO4
Molecular Weight391.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(S)-2-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-fluorophenyl)acetic acid CAS 872359-16-5 chemical structure

Description

The occurrence of (S)-2-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-fluorophenyl)acetic acid is closely related to a flavonoid 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.

(S)-2-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-fluorophenyl)acetic acid (CAS 872359-16-5), molecular formula C23H18FNO4 and molecular weight 391.39 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of (S)-2-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-fluorophenyl)acetic acid (C23H18FNO4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

As a certified reference material (CRM), (S)-2-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-fluorophenyl)acetic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC23H18FNO4
Molecular Weight391.39 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentF-containing
Nitrogen Atoms1

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