2-[[6-[(3S)-3-(5-methyl-1,3-dioxoisoindol-2-yl)cyclohexyl]-2,4-dioxopyrimidin-1-yl]methyl]benzonitrile

This compound is an alogliptin impurity reference standard, specifically a structurally characterized derivative containing a dioxopyrimidine and a dioxoisoindole moiety. It is primarily used as a laboratory reference material for the quality control and analytical testing of alogliptin drug substances.