InChI=1/C18H16N4O4S/c23-16(10-9-14-7-4-8-15(11-14)22(25)26)19-18(27)21-20-17(24)12-13-5-2-1-3-6-13/h1-11H,12H2,(H,20,24)(H2,19,21,23,27)/b10-9+/f/h19-21H	B00BCE979BD9DBCB