InChI=1/C18H18N2O3S/c1-10-5-11(2)16-15(6-10)23-8-13(17(16)22)7-14-9-24-18(19-14)20(4)12(3)21/h5-7,9H,8H2,1-4H3/b13-7+ A5B6A5A66F11E197