InChI=1/C12H16N2O6S/c1-19-12-10(20-9-4-2-3-5-9)6-8(14(15)16)7-11(12)21(13,17)18/h6-7,9H,2-5H2,1H3,(H2,13,17,18)/f/h13H2 C646E7BC310FEEB2