InChI=1/C13H11N5O5/c19-9-6-18(13(23)15-9)16-10(20)5-17-11(21)7-3-1-2-4-8(7)14-12(17)22/h1-4H,5-6H2,(H,14,22)(H,16,20)(H,15,19,23)/f/h14-16H 2977F6D3BA11FAE6