Ethyl 2-fluoro-3-methylbut-2-enoate CAS 685-89-2

Description

The occurrence of Ethyl 2-fluoro-3-methylbut-2-enoate is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Ethyl 2-fluoro-3-methylbut-2-enoate (CAS 685-89-2), molecular formula C7H11FO2 and molecular weight 146.16 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Ethyl 2-fluoro-3-methylbut-2-enoate (C7H11FO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional 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.

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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