68217-17-4 3,6-Ethanodicyclopenta(cd,gh)pentalene-7,8-dione, 2a,3,3a,5a,6,6a,6b,6c-octahydro- 89497-30-3 L-Tyrosine,3-hydroxy-N-(3,7,11,15-tetramethyl-1-oxo-2,6,10,14-hexadecatetraenyl)-, methyl ester, (Z,E,E)- 89498-91-9 6-hydroxy-11-methoxy-4,7b,9,12a-tetramethyl-3a,4a,5,6,7a,7b,8,8a,9,12a,12b,12c-dodecahydro[1,3]benzodioxolo[6,5,4-de]benzo[g]chromen-12(4H)-one