(2S,3S,4S,5R,6R)-3,4,5-trihydroxy-6-(((1S,3aR,4S,6aS,6bS,8aR,10R,12aS,12bS)-3-hydroxy-4-(2-hydroxyacetyl)-12a-methyltetradecahydro-1H,3H-1,3a-methanocyclopenta[c]naphtho[2,1-e]oxepin-10-yl)oxy)tetrahydro-2H-pyran-2-carboxylic acid,aldosterone Impurity