InChI=1/C11H13N5O4/c1-13-4-6-14(7-5-13)9-3-2-8(15(17)18)10-11(9)16(19)20-12-10/h2-3H,4-7H2,1H3/p+1/fC11H14N5O4/h13H/q+1 DBE2C26A07260C67