InChI=1S/C15H18N2O8S/c1-7(18)25-5-8-6-26-14-11(13(22)17(14)12(8)15(23)24)16-9(19)3-2-4-10(20)21/h11,14H,2-6H2,1H3,(H,16,19)(H,20,21)(H,23,24)/t11-,14-/m1/s1