3-Amino-N,4-bis(4-methoxyphenyl)-6-phenylthieno[2,3-b]pyridine-2-carboxamide CAS 333777-93-8

Description

3-Amino-N,4-bis(4-methoxyphenyl)-6-phenylthieno[2,3-b]pyridine-2-carboxamide (CAS 333777-93-8) is a high-purity analytical reference standard with the molecular formula C28H23N3O3S and a molecular weight of 481.57 g/mol.

Structurally, 3-Amino-N,4-bis(4-methoxyphenyl)-6-phenylthieno[2,3-b]pyridine-2-carboxamide (C28H23N3O3S) 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 19.0, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 481.57 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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