4-(Methylthio)-2-(2-phenoxyphenyl)pyrido[3,4-d]pyrimidine CAS 1092460-51-9

Description

Based on its molecular formula C20H15N3OS, 4-(Methylthio)-2-(2-phenoxyphenyl)pyrido[3,4-d]pyrimidine contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 345.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

4-(Methylthio)-2-(2-phenoxyphenyl)pyrido[3,4-d]pyrimidine (CAS 1092460-51-9), molecular formula C20H15N3OS and molecular weight 345.42 g/mol, is a CATO reference standard with documented purity and traceability.

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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