Synonyms: 2-[(Methylsulfonyl)oxy]acetic acid (3aS,4R,5S,6S,8R,9R,9aR,10R)-6-ethenyldecahydro-5-hydroxy-4,6,9,10-tetramethyl-1-oxo-3a,9-propano-3aH-cyclopentacycloocten-8-yl ester;(1S,2R,3S,4S,6R,7R,8R,14R)-3-Hydroxy-2,4,7,14-tetramethyl-9-oxo-4-vinyltricyclo[5.4.3.01,8]tetradec-6-yl [(methylsulfonyl)oxy]acetate;