1H-Cycloundec(d)isoindole-1,11,12,15(2H)-tetrone, 3,3a,4,6a,9,10,13,14-octahydro-4,5,8-trimethyl-3-(2-methylpropyl)-, (3S,3aR,4S,6aS,7E,15aS)- 72363-48-5