3-(1,3-dimethyl-2,6-dioxopurin-7-yl)propane-1-sulfonic acid

3-(1,3-dimethyl-2,6-dioxo-purin-7-yl)propane-1-sulfonic acid

3-(2,6-diketo-1,3-dimethyl-purin-7-yl)propane-1-sulfonic acid

1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxo-7H-purine-7-propanesulphonic acid

1,2,3,6-Tetrahydro-1,3-dimethyl-2,6-dioxo-7H-purine-7-(1-propanesulfonic acid)