1,2,3,6-Tetrahydro-2,6-dioxo-1-methyl-3-(2-methylpropyl)-7H-purine-7-propanoic acid 132560-21-5 7H-Purine-7-propanoic acid, 1,2,3,6-tetrahydro-2,6-dioxo-1-methyl-3-(2-methylpropyl)- BRN 4206027