Not Less Than - 95%
2-(3-Hydroxy adamantan-1-yl)-hexahydro-pyrrolo[1,2-a]pyrazine-1,4-dione; Pyrrolo[1,2-a]pyrazine-1,4-dione, hexahydro-2-(3-hydroxytricyclo[3.3.1.13,7]dec-1-yl); 2-(3-Hydroxyadamantan-1-yl)hexahydropyrrolo[1,2-a]pyrazine-1,4-dione; 2-((1r,3s,5R,7S)-3-Hydroxyadamantan-1- yl)hexahydropyrrolo[1,2-a]pyrazine-1,4-dione; Hexahydro-2-(3-hydroxytricyclo[3.3.1.13,7]dec-1-yl)pyrrolo[1,2-a]pyrazine-1,4-dione; Vildagliptin Diketo Impurity; Vildagliptin Diketopiperazine; Vildagliptin Impurity C