7-(3-Fluorophenyl)-2-(4-(pyridin-2-yl)piperazin-1-yl)thieno[3,2-d]pyrimidin-4(3H)-one CAS 1242983-81-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1242983-81-8
Molecular FormulaC21H18FN5OS
Molecular Weight407.46 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-(3-Fluorophenyl)-2-(4-(pyridin-2-yl)piperazin-1-yl)thieno[3,2-d]pyrimidin-4(3H)-one CAS 1242983-81-8 chemical structure

Description

7-(3-Fluorophenyl)-2-(4-(pyridin-2-yl)piperazin-1-yl)thieno[3,2-d]pyrimidin-4(3H)-one (C21H18FN5OS) 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

CATO supplies 7-(3-Fluorophenyl)-2-(4-(pyridin-2-yl)piperazin-1-yl)thieno[3,2-d]pyrimidin-4(3H)-one (CAS 1242983-81-8), a certified reference material (molecular formula C21H18FN5OS, MW 407.46 g/mol) for analytical method development and quality control.

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

Molecular FormulaC21H18FN5OS
Molecular Weight407.46 g/mol
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Halogen ContentF-containing
Nitrogen Atoms5
Sulfur Atoms1

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