5-(4-Chlorophenyl)-1-(4-ethylphenyl)-2-methyl-1H-pyrrole-3-carboxylic acid CAS 881041-75-4

Description

Based on its molecular formula C20H18ClNO2, 5-(4-Chlorophenyl)-1-(4-ethylphenyl)-2-methyl-1H-pyrrole-3-carboxylic acid contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 339.82 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

5-(4-Chlorophenyl)-1-(4-ethylphenyl)-2-methyl-1H-pyrrole-3-carboxylic acid (CAS 881041-75-4) is a high-purity analytical reference standard with the molecular formula C20H18ClNO2 and a molecular weight of 339.82 g/mol.

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.

As a certified reference material (CRM), 5-(4-Chlorophenyl)-1-(4-ethylphenyl)-2-methyl-1H-pyrrole-3-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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