2,6-octadienedioic acid, 2,6-dimethyl-, dimethyl ester, (2Z,6Z)- InChI=1/C12H18O4/c1-9(8-11(13)15-3)6-5-7-10(2)12(14)16-4/h7-8H,5-6H2,1-4H3/b9-8-,10-7 dimethyl (2Z,6Z)-2,6-dimethylocta-2,6-dienedioate