(5Z,6E)-Nona-1,3,5-triene-3-yne (5Z,7E)-nona-1,5,7-trien-3-yne 1,5,7-nonatrien-3-yne, (5Z,7E)- InChI=1/C9H10/c1-3-5-7-9-8-6-4-2/h3-4,6,8-9H,1H2,2H3/b6-4+,9-8