132560-18-0 1H-Purine-2,6-dione, 3,7-dihydro-7-(3,3-diethoxypropyl)-1-methyl-3-(2-methylpropyl)- 1H-Purine-7-propionaldehyde, 2,3,6,7-tetrahydro-2,6-dioxo-3-isobutyl-1-methyl-, diethyl acetal BRN 4207425