InChI=1/C12H16N2O6/c1-6-2-3-7(8(4-6)14(18)19)13-12-11(17)10(16)9(15)5-20-12/h2-4,9-13,15-17H,5H2,1H3/t9-,10+,11-,12-/m1/s1 63AD5D890F88D6E0