(1alpha,3Abeta,4alpha,8abeta,9S*)-octahydro-4,8,8,9-tetramethyl-1,4-methanoazulen-2(1H)-one 1,3,4,6,7,8a-Hexahydro-1,1,5,5-tetramethyl-2H-2,4a-methanonaphthalen-8(5H)-one 1,4-Methanoazulen-2(1H)-one, octahydro-4,8,8,9-tetramethyl- 14727-47-0 2,2,7,7-Tetramethyltricyclo(6.2.1.0(sup 1,6))undecan-5-one BRN 3090959 EINECS 238-780-1 Isolongifolanone