(E)-1,3-Dipropyl-8-(2-(4-propoxyphenyl)ethenyl)-3,7-dihydro-1H-purine-2,6-dione (E)-8-(4-Propoxystyryl)-1,3-dipropylxanthine 151539-43-4 1H-Purine-2,6-dione, 3,7-dihydro-1,3-dipropyl-8-(2-(4-propoxyphenyl)ethenyl)-, (E)-