InChI=1/C19H15N5O4/c1-19(11-7-3-2-4-8-11)17(27)24(18(28)20-19)23-16(26)14-12-9-5-6-10-13(12)15(25)22-21-14/h2-10H,1H3,(H,20,28)(H,22,25)(H,23,26)/p-1/t19-/m0/s1/fC19H14N5O4/h20,23H/q-1 33741D43F41A5BEE