European Pharmacopoeia (EP) Reference Standard Synonym(s): (3 R ,5 R )-3,5-Dihydroxy-7-[(1 S ,2 S ,6 R ,8 S ,8a R )-6-hydroxy-2-methyl-8-[[(2 S )-2-methylbutanoyl]oxy]-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]heptanoic acid Empirical Formula: C23H36O7 Formula Weight:...