28-Acetoxy-15alpha-hydroxymansumbinone Acetic acid 15-hydroxy-4,8,10,14-tetramethyl-3-oxo-2,3,4,5,6,7,8,9,10,11,12,13,14,15-tetradecahydro-1H-cyclopenta[a]phenanthren-4-ylmethyl ester InChI=1/C24H36O4/c1-15(25)28-14-22(3)17-10-13-23(4)18(21(17,2)12-11-19(22)26)8-6-16-7-9-20(27)24(16,23)5/h7,9,16-18,20,27H,6,8,10-14H2,1-5H3/t16-,17-,18-,20+,21+,22+,23-,24+/m1/s [(4alpha,5alpha,15alpha)-15-hydroxy-4,8,10,14-tetramethyl-3-oxogon-16-en-4-yl]methyl acetate gon-16-en-3-one, 4-[(acetyloxy)methyl]-15-hydroxy-4,8,10,14-tetramethyl-, (4alpha,5alpha,15alpha)-