119944-79-5 8,17-Epoxylabd-12-ene-15,16-dial Butanedial, (2-(octahydro-5,5,8a-trimethylspiro(naphthalene-2(1H),2'-oxiran)-1-yl)ethylidene)-, (1alpha,2alpha,4abeta,8aalpha)- ZT-Dial