InChI=1/C18H14N2O4S/c1-2-12-6-8-14(9-7-12)19-17(21)16(25-18(19)22)11-13-4-3-5-15(10-13)20(23)24/h3-11H,2H2,1H3/b16-11- 51940B009BE7F1AC