InChI=1S/C10H12N4O5S.Na/c1-10(5-13-3-2-11-12-13)8(9(16)17)14-6(15)4-7(14)20(10,18)19;/h2-3,7-8H,4-5H2,1H3,(H,16,17);/q;+1/p-1/t7-,8+,10+;/m1./s1