122771-73-7 15-Acetylthioxyfurodysinin lactone Ethanethioic acid, S-((2,4,4a,5,6,8a,9,9a-octahydro-9a-hydroxy-4,4-dimethyl-2-oxonaphtho(2,3-b)furan-7-yl)methyl) ester, (4aalpha,8aalpha,9aalpha)- SK&F 105900 SK&F-105900 Skf 105900