2H-pyrimido[1,2-b]pyridazine-4-carboxamide, N-(2-hydroxyethyl)-7-[(2-hydroxyethyl)amino]-2-oxo- InChI=1/C12H15N5O4/c18-5-3-13-9-1-2-10-15-11(20)7-8(17(10)16-9)12(21)14-4-6-19/h1-2,7,18-19H,3-6H2,(H,13,16)(H,14,21 N-(2-hydroxyethyl)-7-[(2-hydroxyethyl)amino]-2-oxo-2H-pyrimido[1,2-b]pyridazine-4-carboxamide