InChI=1/C15H14N2O4S/c18-11-2-1-5-16-15(11)17-14(19)9-22-10-3-4-12-13(8-10)21-7-6-20-12/h1-5,8,18H,6-7,9H2,(H,16,17,19)/p-1/fC15H13N2O4S/h18h,17H/q-1 FDBB12E3458AF368