6-(4-(2-(3-(5-chloro-2-cyanophenoxy)-2-hydroxypropylamino)-2-methylpropylamino)phenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone monoethyl maleate
6-(4-(2-(3-(5-chloro-2-cyanophenoxy)-2-hydroxypropylamino)-2-methylpropylamino)phenyl)-4,5-dihydro-5-methyl-3(2h)-pyridazinone monoethyl maleate