002542: InChI=1.12Beta/C18H16N2O6/c21-15(19-25-17(23)13-7-3-1-4-8-13)11-12-16(22)20-26-18(24)14-9-5-2-6-10-14/h1-10H,11-12H2,(H,19,21)(H,20,22)