2H-4,7a-Ethanonaphth(1,2-b)oxirene, octahydro-3a,4,7b-trimethyl- 5,6-Epoxy-1,2,6-trimethyltricyclo(5.3.2.02.7)dodecane 67919-67-9 Ambroprene EINECS 267-753-7 Octahydro-3a,4,7b-trimethyl-2H-4,7a-ethanonaphth(1,2-b)oxirene