150594-72-2 6-(4-Amidinophenyl)-4-((4-carboxybutyl)aminocarbonyl)-2-methyl-(2H)-pyridazin-3-one Pentanoic acid, 5-(((6-(4-(aminoiminomethyl)phenyl)-2,3-dihydro-2-methyl-3-oxo-4-pyridazinyl)carbonyl)amino)-