InChI=1S/C17H14N2O7S3/c1-11(20)19-15-7-5-13(17(9-15)29(24,25)26)3-2-12-4-6-14(18-10-27)8-16(12)28(21,22)23/h2-9H,1H3,(H,19,20)(H,21,22,23)(H,24,25,26)