InChI=1/C12H9NO2S2/c1-2-9-13-11-10(12(14)15-9)7(6-17-11)8-4-3-5-16-8/h3-6H,2H2,1H3/p+1/fC12H10NO2S2/h13H/q+1 797862B1AF027330