ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C26H18N2O2/c29-19-11-13-23-21(15-19)25(17-7-3-1-4-8-17)27-24-14-12-20(30)16-22(24)26(28-23)18-9-5-2-6-10-18/h1-16,29-30H/b25-21-,26-22-,27-24+,27-25?,28-23+,28-26?/file?format=sdf&get3d=True  -- InChI=1S/C26H18N2O2/c29-19-11-13-23-21(15-19)25(17-7-3-1-4-8-17)27-24-14-12-20(30)16-22(24)26(28-23)18-9-5-2-6-10-18/h1-16,29-30H/b25-21-,26-22-,27-24+,27-25?,28-23+,28-26? could not be loaded.