InChI=1/C16H14N2O7S/c19-16(10-1-3-13-14(7-10)25-9-24-13)17-18-26(20,21)11-2-4-12-15(8-11)23-6-5-22-12/h1-4,7-8,18H,5-6,9H2,(H,17,19)/f/h17H 9C3DAAAF98F03850