InChI=1/C17H11NO6S/c19-14-7-6-11-10(14)2-1-3-15(11)24-25(22,23)9-4-5-12-13(8-9)17(21)18-16(12)20/h1-5,8H,6-7H2,(H,18,20,21)/f/h18H 91383886EA286DD9