tert-Butyl 5-chloro-2-fluoro-4-methylbenzoate CAS 1443432-75-4

Description

Compared with other compounds in its class, the molecular weight of 244.69 g/mol gives tert-Butyl 5-chloro-2-fluoro-4-methylbenzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

tert-Butyl 5-chloro-2-fluoro-4-methylbenzoate (CAS 1443432-75-4) is a high-purity analytical reference standard with the molecular formula C12H14ClFO2 and a molecular weight of 244.69 g/mol.

Based on its molecular formula C12H14ClFO2, tert-Butyl 5-chloro-2-fluoro-4-methylbenzoate contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 244.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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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