6-tridecene-4,8-diynoic acid, methyl ester, (6Z)- InChI=1/C14H18O2/c1-3-4-5-6-7-8-9-10-11-12-13-14(15)16-2/h8-9H,3-5,12-13H2,1-2H3/b9-8 methyl (6Z)-tridec-6-ene-4,8-diynoate