(E)-6-Methyl-1-(2-methyl-1-oxo-2-butenyl)-1,2,3,4-tetrahydroquinoline 81719-55-3 AI3-36166 CHR 5 Quinoline, 1,2,3,4-tetrahydro-6-methyl-1-(2-methyl-1-oxo-2-butenyl)-, (E)-