3 4 diisopropyl 2 5 dimethyl 3 hexene July 8, 2019 16 32 64 128 3 4 diisopropyl 2 5 dimethyl 3 hexene structure 3 3-dimethyl-2-hexanone 3 3-dimethylhexane 2 3-dimethylhexene 2 3-dimethylhexyne 2 3-dimethylhexan