2,8-nonadiynoic acid, 7-oxo-9-phenyl-, methyl ester InChI=1/C16H14O3/c1-19-16(18)11-7-3-6-10-15(17)13-12-14-8-4-2-5-9-14/h2,4-5,8-9H,3,6,10H2,1H methyl 7-oxo-9-phenylnona-2,8-diynoate