InChI=1/C20H18N2O5S/c23-17-14-6-1-2-7-15(14)18(24)22(17)12-27-20(26)13-5-3-9-21(11-13)19(25)16-8-4-10-28-16/h1-2,4,6-8,10,13H,3,5,9,11-12H2/t13-/m0/s1 C292F3F9441801D2