Levosimendan dazinones intermediates

6-(4-aminophenyl)-5-methylpyridazin-3(2h)one, 98+% ; 6-(4''-aminophenyl)-4,5-dihydro-5-methylpyridazin-3-one ; 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2h)-pyrid ; 6-(p-aminophenyl)-4,5-dihydro-5-methyl-3(2h)-pyridazinone ; ici 109,081 ; levosimendan intermediate ; 6-(p-aminophenyl)-5-methyl-4,5-dihydro-3(2h)-pyridazinone ; 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2h)pyridazinone ; levosimendan dazinones intermediates ; 6-(4-aminophenyl)-5-methylpyridazin-3(2h)one