InChI=1/C20H16N2O4S/c1-11(23)16-17-13-5-3-4-6-14(13)26-20(16,2)21-19-22(17)18(24)15(27-19)9-12-7-8-25-10-12/h3-10,16-17H,1-2H3/b15-9+/t16-,17+,20-/m1/s1	6321E442CB80C708