4-Ethyl-5-(4-methylphenyl)thiophene-2-carboxylic acid CAS 869950-31-2

Description

Compared with other compounds in its class, the molecular weight of 246.32 g/mol gives 4-Ethyl-5-(4-methylphenyl)thiophene-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Ethyl-5-(4-methylphenyl)thiophene-2-carboxylic acid (CAS 869950-31-2), molecular formula C14H14O2S and molecular weight 246.32 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Ethyl-5-(4-methylphenyl)thiophene-2-carboxylic acid (C14H14O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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 246.32 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.

CATO manufactures 4-Ethyl-5-(4-methylphenyl)thiophene-2-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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