5 9 undecadien 2 one 6 10 dimethyl z )- July 8, 2019 16 32 64 128 5 9-undecadien-2-ol 6 10-dimethyl- 2 4 dimethylhexane 5 9-undecadien-2-one 6 10-dimethyl- 2 5-dimethyl-1 5-hexadiene