2,4,6,8-Nonatetraenoic acid, 9-(2,4-dimethyl-3-thienyl)-3,7-dimethyl-, ethyl ester, (all-E)- 63826-95-9 Ethyl 9-(2,4-dimethyl-3-thienyl)-3,7-dimethyl-2,4,6,8-nonatetraenoate (all-E)-