InChI=1/C16H14N2O6S/c1-9-2-5-13(25-9)15(20)22-7-14(19)18-16(21)17-10-3-4-11-12(6-10)24-8-23-11/h2-6H,7-8H2,1H3,(H2,17,18,19,21)/f/h17-18H FEA0C110BCCBCAB3