InChI=1/C12H14N2O5/c15-8-14(19)10(12(18)13-7-11(16)17)6-9-4-2-1-3-5-9/h1-5,8,10,19H,6-7H2,(H,13,18)(H,16,17)/p-1/t10-/m0/s1/fC12H13N2O5/h13H/q-1 A6B6AF40C3303786