InChI=1/C13H12N2O5S2/c16-9-7-5-3-1-2-4-6(5)21-10(7)15-13(14-9)22-8(11(17)18)12(19)20/h8H,1-4H2,(H,17,18)(H,19,20)(H,14,15,16)/p-2/fC13H10N2O5S2/h15H/q-2 0B1BA11889B45BF3