InChI=1/C18H19N3O4S/c19-18(20-7-6-13-4-2-1-3-5-13)26-11-15-9-16(21(22)23)8-14-10-24-12-25-17(14)15/h1-5,8-9H,6-7,10-12H2,(H2,19,20)/p+1/fC18H20N3O4S/h20H,19H2/q+1 A77D4368085A684B