InChI=1S/C14H15N3O5S2/c1-10-2-6-13(7-3-10)24(21,22)17-14(18)16-11-4-8-12(9-5-11)23(15,19)20/h2-9H,1H3,(H2,15,19,20)(H2,16,17,18)