InChI=1/C13H12N2O5S/c1-15(13(17)9-2-7-12(16)20-8-9)10-3-5-11(6-4-10)21(14,18)19/h2-8H,1H3,(H2,14,18,19)/f/h14H2 8FA80EDA5E8271A6