InChI=1/C17H15NO6S/c1-10-3-8-15(17-14(19)9-11(2)16(10)17)24-25(22,23)13-6-4-12(5-7-13)18(20)21/h3-8,11H,9H2,1-2H3/t11-/m0/s1 EF23AACF91559E98