InChI=1S/C19H17N3O9S/c23-10-11(24)13(15(26)27)30-18(12(10)25)31-16(28)9-17(29)32-19-20-5-7-6-3-1-2-4-8(6)21-14(7)22(9)19/h1-5,9-13,17-18,23-25,29H,(H,26,27)