InChI=1/C19H18N2O4S/c1-13-2-7-18-17(10-13)19(22)15(12-25-18)11-21-9-8-14-3-5-16(6-4-14)26(20,23)24/h2-7,10-12H,8-9H2,1H3,(H2,20,23,24)/p+1/b21-11+/fC19H19N2O4S/h21H,20H2/q+1 BF5EC7AC7439E81C