Ethyl 2-amino-4-(4-butylphenyl)-5-methylthiophene-3-carboxylate CAS 350990-13-5

Description

Compared with other compounds in its class, the molecular weight of 317.45 g/mol gives Ethyl 2-amino-4-(4-butylphenyl)-5-methylthiophene-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ethyl 2-amino-4-(4-butylphenyl)-5-methylthiophene-3-carboxylate (CAS 350990-13-5), a certified reference material (molecular formula C18H23NO2S, MW 317.45 g/mol) for analytical method development and quality control.

Structurally, Ethyl 2-amino-4-(4-butylphenyl)-5-methylthiophene-3-carboxylate (C18H23NO2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 317.45 g/mol, it falls into the moderately-high-molecular-weight range. 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.

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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