2-decene-4,6-diynoic acid, methyl ester, (2Z)- InChI=1/C11H12O2/c1-3-4-5-6-7-8-9-10-11(12)13-2/h9-10H,3-4H2,1-2H3/b10-9 methyl (2Z)-dec-2-ene-4,6-diynoate