Synonyms: 3,7-dihydro-1,3-dipropyl-8-phenyl-1h-purine-2,6,dione;dione,3,7-dihydro-1,3-dipropyl-8-phenyl-1h-purine-6;1,3-DIPROPYL-8-PHENYLXANTHINE;1,3-Dipropyl-8-phenyl-1H-purine-2,6(3H,7H)-dione;1,3-Dipropyl-8-phenyl-7H-purine-2,6(1H,3H)-dione;NPC-200