InChI=1/C24H20N2O7S/c27-22-20-8-4-5-9-21(20)34(30,31)26(22)16-33-23(28)19-12-10-17(11-13-19)14-25-24(29)32-15-18-6-2-1-3-7-18/h1-13H,14-16H2,(H,25,29)/f/h25H 94861A20C81F05E7