Bisacodyl Related Compound E (20 mg) (2-[(4-Acetoxyphenyl)(pyridin-2-yl)methyl]phenyl acetate);1'-Desacetyl-3'-Acetyl Bisacodyl;4'-Desacetoxy-2'-Acetoxy Bisacodyl;Bisacodyl Related CoMpound E;2,4'-(2-Pyridylmethylene)diphenol diacetate;Bisacodyl EP Impurity E;[4-[(2-acetyloxyphenyl)-pyridin-2-ylmethyl]phenyl] acetate;2-[(RS)-[4-(Acetyloxy)phenyl]-(pyri