5-(4-Ethoxy-3-methoxyphenyl)cyclohexane-1,3-dione CAS 903440-59-5

Description

Compared with other compounds in its class, the molecular weight of 262.30 g/mol gives 5-(4-Ethoxy-3-methoxyphenyl)cyclohexane-1,3-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 5-(4-Ethoxy-3-methoxyphenyl)cyclohexane-1,3-dione (CAS 903440-59-5), a certified reference material (molecular formula C15H18O4, MW 262.30 g/mol) for analytical method development and quality control.

Structurally, 5-(4-Ethoxy-3-methoxyphenyl)cyclohexane-1,3-dione (C15H18O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 262.30 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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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