(E)-8-(3,4-Dimethoxystyryl)-7-methyl-1,3-dipropyl-2-thioxanthine 175675-60-2 1H-Purin-6-one, 1,2,3,7-tetrahydro-8-(2-(3,4-dimethoxyphenyl)ethenyl)-1,3-dipropyl-7-methyl-2-thioxo-, (E)-