6-azulenecarboxaldehyde, 1,2,3,3a,4,7,8,8a-octahydro-3a-methyl-1-(1-methylethenyl)-, (1S,3aR,8aS)- InChI=1/C15H22O/c1-11(2)13-7-9-15(3)8-6-12(10-16)4-5-14(13)15/h6,10,13-14H,1,4-5,7-9H2,2-3H3/t13-,14+,15+/m1/s rel-(3R,3aR,8aS)-3-isopropenyl-8a-methyl-1,2,3,3a,4,5,8,8a-octahydroazulene-6-carbaldehyde