Methyl 2-amino-4-(4-cyclohexylphenyl)-5-methylthiophene-3-carboxylate CAS 351156-56-4

Description

As a certified reference material (CRM), Methyl 2-amino-4-(4-cyclohexylphenyl)-5-methylthiophene-3-carboxylate 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.

Methyl 2-amino-4-(4-cyclohexylphenyl)-5-methylthiophene-3-carboxylate (CAS 351156-56-4), molecular formula C19H23NO2S and molecular weight 329.46 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Methyl 2-amino-4-(4-cyclohexylphenyl)-5-methylthiophene-3-carboxylate (C19H23NO2S) 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 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 329.46 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

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