InChI=1/C16H12N2O4S2/c19-16(11-3-4-14(22-11)18(20)21)17-7-5-12-10(6-9-24-12)15(17)13-2-1-8-23-13/h1-4,6,8-9,15H,5,7H2/t15-/m1/s1 C44B9E621D5D7575