InChI=1/C18H22N2O4S/c1-4-24-17-8-6-7-14(18(17)21)12-19-15-9-10-16(13(3)11-15)20-25(22,23)5-2/h6-12,20-21H,4-5H2,1-3H3 418CAF25C0751ADD