InChI=1/C18H13NO4/c20-17(19-22)9-8-12-4-3-6-14(10-12)18(21)16-11-13-5-1-2-7-15(13)23-16/h1-11,22H,(H,19,20)/b9-8+/f/h19H	B1152061035E003F