InChI=1/C21H20N2O4S/c1-26-15-7-4-13(5-8-15)21(16-9-6-14(24)11-18(16)25)12-17(22-20(28)23-21)19-3-2-10-27-19/h2-11,17,24-25H,12H2,1H3,(H2,22,23,28)/t17-,21-/m1/s1/f/h22-23H	D9A44FFD09161293