InChI=1/C13H15N5O/c1-8(19)17-11-4-2-9(3-5-11)6-10-7-16-13(15)18-12(10)14/h2-5,7H,6H2,1H3,(H,17,19)(H4,14,15,16,18)/p+1/fC13H16N5O/h16-17H,14-15H2/q+1 B5B51060A5A4B5B8