3 7 dimethyl 6 octenal structure July 8, 2019 16 32 64 128 3 methylhexane 3 7-dimethyl-6-octen-1-ol 3 7-dimethyl-1 6-octadiene 6-octenal 3 7-dimethyl- 3 7-dimethyl-2 6-octadienal