1,2,3,6-TETRAHYDRO-1,3-DIMETHYL-2,6-DIOXO-7H-PURINE-7-ACETIC ACID, COMPOUND WITH PIPERAZINE
1,2,3,6-TETRAHYDRO-1,3-DIMETHYL-2,6-DIOXO-7H-PURINE-7-ACETIC ACID, COMPOUND WITH PIPERAZINE(1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxo-7H-purine-7-acetic acid, compound with piperazine)