3-Amino-6-ethyl-N-(o-tolyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide CAS 445268-95-1

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Amino-6-ethyl-N-(o-tolyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide.

3-Amino-6-ethyl-N-(o-tolyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (CAS 445268-95-1), molecular formula C21H23N3OS and molecular weight 365.49 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3-Amino-6-ethyl-N-(o-tolyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (C21H23N3OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 365.49 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.

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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