InChI=1S/C14H17N3O9S/c1-2-16(3-4-18)14(20)10(8-15)5-9-6-11(17(21)22)13(12(19)7-9)26-27(23,24)25/h6-7,10,18-19H,2-5H2,1H3,(H,23,24,25)