2(Or 3)-methylbutyl 3,7-dimethyl-2,6-octadienoate 2,6-Octadienoic acid, 3,7-dimethyl-, 2(or 3)-methylbutyl ester 68310-54-3 EINECS 269-717-6 Isoamyl 3,7-dimethyl-2,6-octadienoate