InChI=1/C19H20N4O5S2/c1-29(25,26)15-6-3-13(4-7-15)11-18(24)20-19-16-12-14(5-8-17(16)21-22-19)23-9-2-10-30(23,27)28/h3-8,12H,2,9-11H2,1H3,(H2,20,21,22,24)/f/h20-21H 6E98976ABDA1EE59