17015-42-8;23747-14-0;26839-70-3;EINECS 245-859-4;1,2,3,4,5,6-Hexahydro-1,1,5,5-tetramethyl-2,4a-methanonaphthalen-7(4aH)-one;2,4a-Methanonaphthalen-7(4aH)-one, 1,2,3,4,5,6-hexahydro-1,1,5,5-tetramethyl-, (2s-cis)-;1,2,3,4,5,6-Hexahydro-1,1,5,5-tetramethyl-7H-2,4a-methanonaphthalen-7-one;7H-2,4a-Methanonaphthalen-7-one, 1,2,3,4,5,6-hexahydro-1,1,5,5-tetramethyl-