(12E)-20-oxo-9,19-didehydro-5,6,7,8,9,10,11,14,15-decahydro-14:5,10-dicycloretinal 2-oxiraneacetaldehyde, alpha-[2-(decahydro-5,5,8a-trimethyl-2-methylene-1-naphthalenyl)ethylidene]-, (alphaE)- InChI=1/C20H30O2/c1-14-6-9-18-19(2,3)10-5-11-20(18,4)16(14)8-7-15(12-21)17-13-22-17/h7,12,16-18H,1,5-6,8-11,13H2,2-4H3/b15-7