1,1,1-Trifluoro-4-(4-chloro-2-fluoro-5-methylphenyl)-2,4-butanedione CAS 177211-21-1

Description

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.

1,1,1-Trifluoro-4-(4-chloro-2-fluoro-5-methylphenyl)-2,4-butanedione (CAS 177211-21-1) is a high-purity analytical reference standard with the molecular formula C11H7ClF4O2 and a molecular weight of 282.62 g/mol.

The molecular framework of 1,1,1-Trifluoro-4-(4-chloro-2-fluoro-5-methylphenyl)-2,4-butanedione (C11H7ClF4O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring 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 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.

Physical & Chemical Properties

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