InChI=1/C21H22N2O6S/c1-23-8-6-13(7-9-23)18-15(24)11-16(25)19-20(26)17(29-21(18)19)10-12-2-4-14(5-3-12)30(22,27)28/h2-5,10-11,13,24-25H,6-9H2,1H3,(H2,22,27,28)/p+1/b17-10-/fC21H23N2O6S/h23H,22H2/q+1 2A2D71F602A1336A