(E)-1,3-Diethyl-8-(4-methoxy-3-methylstyryl)-7-methylxanthine 155271-41-3 1H-Purine-2,6-dione, 3,7-dihydro-1,3-diethyl-8-(2-(4-methoxy-3-methylphenyl)ethenyl)-7-methyl-, (E)-