2-(9H-Fluoren-9-ylidene)-2-fluoroacetic acid CAS 400653-14-7

Description

The occurrence of 2-(9H-Fluoren-9-ylidene)-2-fluoroacetic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-(9H-Fluoren-9-ylidene)-2-fluoroacetic acid (CAS 400653-14-7), molecular formula C15H9FO2 and molecular weight 240.23 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2-(9H-Fluoren-9-ylidene)-2-fluoroacetic acid (C15H9FO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

CATO manufactures 2-(9H-Fluoren-9-ylidene)-2-fluoroacetic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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