InChI=1/C18H16N2O5S/c1-25-18(22)16-9-11-5-3-4-6-14(11)19(16)17(21)13-10-12(26-2)7-8-15(13)20(23)24/h3-8,10,16H,9H2,1-2H3/t16-/m1/s1 5EEDB68151CF582E