Not Less Than - 95%
Methyl (S)-4-oxo-4,6,7,8-tetrahydropyrrolo[1,2-a]pyrimidine-6-carboxylate;
Pyrrolo[1,2-a]pyrimidine-6-carboxylic acid, 4,6,7,8-tetrahydro-4-oxo-, methyl ester, (6S);Methyl (6S)-4,6,7,8-tetrahydro-4-oxopyrrolo[1,2-a]pyrimidine-6-carboxylate