Synonyms: 1H-Purine-2,6-dione,3,7-dihydro-;1H-Purine-2, 6-diol;9H-Purine-2,6-(1H,3H)-dione;3,7-dihydropurine-2,6-dione;Isoxanthine;USAF CB-17;2,6-Dioxo-1,2,3,6-tetrahydropurine;Xanthic oxide;1H-Purine-2,6-diol;2,6(1,3)-Purinedion;XAN;Purine-2,6(1H,3H)-dione;3,5-dihydropurine-2,6-dione;3,7-dihydro-1H-purine-2,6-dione;Pseudoxanthine;Purine-2,6-diol;1H-Purine-2,6-dione, 3,7-dihydro-;Purine-2(3H),6(1H)-dione;Xanthin;1-H-purine-2,6-dione, 3,7-dihydro(9CI);2,6-Dihydroxypurine;