InChI=1/C21H17NO3S/c1-13(2)16-5-3-4-6-19(16)26-20-17(23)11-18(25-21(20)24)15-9-7-14(12-22)8-10-15/h3-11,13,23H,1-2H3/p-1/fC21H16NO3S/h23h/q-1 F43592FC35C3F94B