2-(2-((5-Ethoxy-1-methyl-6-oxo-1,6-dihydropyridazin-4-yl)amino)ethoxy)acetic acid 5-(2-(Carboxymethyloxy)ethylamino)-4-ethoxy-2-methyl-3(2H)-pyridazinone 5-(N-Carboxymethyl-N-2-hydroxyethylamino)-4-ethoxy-2-methyl-3(2H)-pyridazinone 5-25-16-00151 (Beilstein Handbook Reference) 67911-05-1 Acetic acid, 2-(2-((5-ethoxy-1-methyl-6-oxo-1,6-dihydropyridazin-4-yl)amino)ethoxy)- BRN 0892630