Showing structure for 2-[(1s,2s,4ar,4bs,6ar,9r,10s,10ar,12ar)-2-isopropyl-1,4a,4b,6a,9,10-hexamethyl-2,3,4,5,6,7,8,9,10,10a,12,12a-dodecahydrochrysen-1-yl]acetaldehyde