Synonyms: 1,2,3,6-Tetrahydro-1,3-dimethyl-2,6-dioxo-7H-purine-7-acetic acid,compound with 2-amino-2-(hydroxymethyl)propane-1,3-diol (1:1);(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl)acetic acid - 2-amino-2-(hydroxymethyl)propane-1,3-diol (1:1)