4 5 dimethyl 2 hexyne structure July 8, 2019 16 32 64 128 4 5 dimethyl 2 hexene structure 3 methylhexane 2 5-dimethylhexa-1 4-diene 2 5-dimethyl-2 4-hexadiene 2 5-dimethyl-3-hexene 2 5-dimethylhexane
