Conivaptan hydrochloride168626-94-6100 % similar 4-[(Biphenyl-2-ylcarbonyl)amino]benzoic acid168626-74-241 % similar Mozavaptan137975-06-540 % similar 5-Dehydro tolvaptan137973-76-332 % similar Tolvaptan150683-30-031 % similar Kartogenin4727-31-530 % similar