2 3-dichloro-4-ethyl-2-hexene July 8, 2019 16 32 64 128 2 3-dichloro-4-ethyl-2-hexene structural formula 2 3-dichloro-4-methylhexane 2-ethylhexyl 2 4-dichlorophenoxyacetate 2 2'-dichlorodiethyl ether