InChI=1/C16H14N2O5S/c1-10(17-16(20)12-7-5-9-23-12)14-15(19)11-6-3-4-8-13(11)24(21,22)18(14)2/h3-9H,1-2H3,(H,17,20)/b14-10-/f/h17H CB3B4D9945A16A27