InChI=1/C14H16N2O5S/c1-21-8-9-3-2-6-16(9)22(19,20)10-4-5-12-11(7-10)13(17)14(18)15-12/h4-5,7,9H,2-3,6,8H2,1H3,(H,15,17,18)/t9-/m0/s1/f/h15H 864DF4B685DE052E