InChI=1S/C10H14N2O9S/c13-7(14)1-5-2-12(4-11-5)10-9(16)8(15)6(21-10)3-20-22(17,18)19/h2,4,6,8-10,15-16H,1,3H2,(H,13,14)(H,17,18,19)