InChI=1S/C8H12N2O6S/c11-1-2-3(12)4(13)5(14)8(16-2)6(15)9-7(17)10-8/h2-5,11-14H,1H2,(H2,9,10,15,17)/t2-,3-,4+,5-,8+/m1/s1