(2E,4Z,10Z,12E)-5,10-dimethylcyclotrideca-2,4,10,12-tetraene-6,8-diyn-1-one 2,4,10,12-cyclotridecatetraene-6,8-diyn-1-one, 5,10-dimethyl-, (2E,4Z,10Z,12E)- InChI=1/C15H12O/c1-13-7-3-4-8-14(2)10-6-12-15(16)11-5-9-13/h5-6,9-12H,1-2H3/b11-5+,12-6+,13-9-,14-10