1-METHYL-3-ISOBUTYLXANTHINE 1H-Purine-2,6-dione, 3,7-dihydro-1-methyl-3-(2-methylpropyl)- 28822-58-4 3,7-Dihydro-3-isobutyl-1-methyl-1H-purine-2,6-dione 3-Isobutyl 1-methylxanthine 3-Isobutyl-1-methylxanthine CCRIS 4290 EINECS 249-259-3 IBMX Isobutylmethylxanthine Methyl-isobutylxanthine NSC 165960 Xanthine, 3-isobutyl-1-methyl-