InChI=1/C16H20N2O4S2/c1-16(2,3)12-4-8-15(9-5-12)24(21,22)18-13-6-10-14(11-7-13)23(17,19)20/h4-11,18H,1-3H3,(H2,17,19,20)/f/h17H2 319B645C9B4DE0F7