4,7-Methano-1H-indene, 5-ethoxy-3a,4,5,6,7,7a-hexahydro- 5-Ethoxy-3a,4,5,6,7,7a-hexahydro-4,7-methano-1H-indene 53018-26-1 9-Ethoxytricyclo(5.2.1.02,6)dec-3-ene EINECS 258-298-5