The molecule is an oxopurine in which the purine ring is substituted by oxo groups at positions 2, 6, and 8. It has a role as a human metabolite, an Escherichia coli metabolite and a mouse metabolite. It is a tautomer of a 2,6-dihydroxy-7,9-dihydro-8H-purin-8-one, a 9H-purine-2,6,8-triol, a 7H-purine-2,6,8-triol, a 1H-purine-2,6,8-triol and a 5,7-dihydro-1H-purine-2,6,8(9H)-trione.
7,9-dihydro-3H-purine-2,6,8-trione