(E)-8-(2-(3-Chlorophenyl)ethenyl)-1,3-dipropyl-3,7-dihydro-1H-purine-2,6-dione (E)-8-(3-Chlorostyryl)-1,3-dipropylxanthine 147700-45-6 1H-Purine-2,6-dione, 3,7-dihydro-8-(2-(3-chlorophenyl)ethenyl)-1,3-dipropyl-, (E)-