1,4-Epoxycyclohexane 1,4-Oxycyclohexane 279-49-2 3,6-Endooxycyclohexane 3,6-Endoxocyclohexane 7-Oxabicyclo[2.2.1]heptane 7-Oxanorbornane Cyclohexane, 1,4-epoxy- Cyclohexane, 3,6-endoxo- NSC54357