InChI=1S/C19H17N3O9S/c23-11-12(24)14(17(28)29)31-18(13(11)25)30-6-1-2-7-8-4-20-19-22(10(5-32-19)16(26)27)15(8)21-9(7)3-6/h1-4,10-14,18,23-25H,5H2,(H,26,27)(H,28,29)