1-methyl-2-[(1E)-pent-1-en-3-yn-1-yl]benzene InChI=1/C12H12/c1-3-4-5-9-12-10-7-6-8-11(12)2/h5-10H,1-2H3/b9-5 benzene, 1-methyl-2-[(1E)-1-penten-3-ynyl]-