1-Undecene, 11,11-bis((3,7-dimethyl-2,6-octadienyl)oxy)- 10-Undecenal digeranyl acetal 11,11-Bis-((3,7-dimethyl-2,6-octadienyl)oxy)-1-undecene 11,11-Digeranyloxy-1-undecene 67785-74-4 Undecylenic aldehyde digeranyl acetal