Several Naming Methods ....OCH3 (E)2-methyl-3-hexene oxide cis 3-methoxycyclopentene oxide trans 2-ethyl-3-isopropyloxirane (E)2-methyl-3,4-epoxyhexane cis 3-methoxy-1,2-epoxycyclopentaneSeveral Naming Methods O (E) 2-methyl-3,4-epoxyhexane (E) 2-methyl-3-hexene oxide trans 2-ethyl-3-isopropyloxirane O OCH3 cis 3-methoxycyclopentene oxide cis 3-methoxy-1,2-epoxycyclopentane