76-67-5 InChI=1/C15H20O4/c1-4-15(13(16)18-5-2,14(17)19-6-3)12-10-8-7-9-11-12/h7-11H,4-6H2,1-3H diethyl ethyl(phenyl)malonate propanedioic acid, ethylphenyl-, diethyl ester