1H-Imidazo(2,1-f)purine-2,4(3H,8H)-dione, 3-(2,3-dihydroxypropyl)-1,8-dimethyl-7-phenyl- 3-(2,3-Dihydroxypropyl)-1,8-dimethyl-7-phenyl-1H-imidazo(2,1-f)purine-2,4(3H,8H)-dione 85592-16-1