InChI=1S/C13H14N2O6S3/c1-21-9-4-2-8(3-5-9)15-7-11(16)10-6-12(23(14,17)18)22-13(10)24(15,19)20/h2-6,11,16H,7H2,1H3,(H2,14,17,18)/t11-/m0/s1