4a,7-Ethano-4aH-naphth(1,8a-b)oxirene, octahydro-4,4,7-trimethyl- 51115-88-9 EINECS 256-991-7 Octahydro-4,4,7-trimethyl-4a,7-ethano-4aH-naphth(1,8a-b)oxirene