1,5,6,7-Tetrahydro-7-hydroxy-9H-imidazo(1,2-a)purin-9-one 151900-35-5 5,6,7,9-Tetrahydro-7-hydroxy-9-oxoimidazo(1,2-a)purine 5,6,7,9-Thop 9H-Imidazo(1,2-a)purin-9-one, 1,5,6,7-tetrahydro-7-hydroxy-