1,3,9-trimethylpurine-2,6-dione 1,3,9-Trimethylxanthine 519-32-4 EINECS 208-267-7 Isocaffeine (8CI) NSC 28332 1H-Purine-2,6-dione, 3,9-dihydro-1,3,9-trimethyl- Isocaffeine NSC28332 AIDS-045558 AIDS045558 PDSP2_000323 PDSP1_000325 1,3,9-Trimethyl-3,9-dihydro-purine-2,6-dione 2,6-Dihydroxy-1,3,9-trimethylpurine T4146_SIGMA ZINC00403604 1H-Purine-2,6-dione, 3,9-dihydro-1,3,9-trimethyl- (9CI) 3,9-Dihydro-1,3,9-trimethyl-1H-purine-2,6-dione