7-(4-Fluorophenyl)-2-(4-phenylpiperazin-1-yl)thieno[3,2-d]pyrimidin-4(1H)-one CAS 1242931-70-9

Description

The occurrence of 7-(4-Fluorophenyl)-2-(4-phenylpiperazin-1-yl)thieno[3,2-d]pyrimidin-4(1H)-one is closely related to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

7-(4-Fluorophenyl)-2-(4-phenylpiperazin-1-yl)thieno[3,2-d]pyrimidin-4(1H)-one (CAS 1242931-70-9), molecular formula C22H19FN4OS and molecular weight 406.48 g/mol, is a CATO reference standard with documented purity and traceability.

7-(4-Fluorophenyl)-2-(4-phenylpiperazin-1-yl)thieno[3,2-d]pyrimidin-4(1H)-one (C22H19FN4OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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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