1,1,2,2,3,3-hexamethyl-2,3,4,7-tetrahydro-1H-indene 1H-indene, 2,3,4,7-tetrahydro-1,1,2,2,3,3-hexamethyl- InChI=1/C15H24/c1-13(2)11-9-7-8-10-12(11)14(3,4)15(13,5)6/h7-8H,9-10H2,1-6H