133563-07-2 1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-7-(2-(methyl(1-methyl-2-phenylethyl)amino)ethyl)-, (-)- 7-(2-(1-Methyl-2-phenyl-ethylamino)propyl)theophylline Mpeapt