InChI=1/C16H11BrN4O5S/c17-13-9-12(21(25)26)5-6-14(13)18-16(27)19-15(22)7-4-10-2-1-3-11(8-10)20(23)24/h1-9H,(H2,18,19,22,27)/b7-4+/f/h18-19H 38AE839014ADEA0F