InChI=1S/C14H18N2O9S2/c1-7(17)15-4-5-26(21)9-6-8-10(14(2,3)25-27(22,23)24)12(18)16(8)11(9)13(19)20/h4-5,8,10H,6H2,1-3H3,(H,15,17)(H,19,20)(H,22,23,24)/b5-4+/t8-,10+,26?/m1/s1