1 4 7 cycloundecatriene 1 5 9 9 tetramethyl z z z July 8, 2019 16 32 64 128 1 4 7 -cycloundecatriene 1 5 9 9-tetramethyl- z z z 1 4 8-cycloundecatriene 2 6 6 9-tetramethyl- (e e e)- 3 4 4 5-tetramethylcyclohexa-2 5-dien-1-one 1 1'-bi(cyclopentylidene) -2 2' 4 4'-tetraene 1 2 3 4-tetramethylcycloheptane
