1,3-Dipropyl-8-phenylxanthine 1H-Purine-2,6,dione, 3,7-dihydro-1,3-dipropyl-8-phenyl- 1H-Purine-2,6-dione, 3,7-dihydro-8-phenyl-1,3-dipropyl- 3,7-Dihydro-1,3-dipropyl-8-phenyl-1H-purine-2,6,dione 85872-53-3