(+-)-(2Z,4E)-4-Carboxy-3,7,11-trimethyl-2,4-dodecadienoic acid (Z,E)-(.+-)-4-(3,7-Dimethyloctylidene)-3-methylpent-2-ene-1,5-dioic acid 2-Pentenedioic acid, 4-(3,7-dimethyloctylidene)-3-methyl-, (2Z,4E)- 68516-38-1 95758-70-6 EINECS 271-153-0