InChI=1S/C13H14N8O2.Na/c22-13-10(20-2-1-16-18-20)8-17-21(13)12-7-11(14-9-15-12)19-3-5-23-6-4-19;/h1-2,7-9H,3-6H2,(H,17,22);/q;+1/p-1