ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C26H28N4O/c1-29(2)26(31)21-12-8-19(9-13-21)18-6-10-20(11-7-18)25-23-15-27-16-24(25)30(23)17-22-5-3-4-14-28-22/h3-14,23-25,27H,15-17H2,1-2H3/t23-,24+,25?/file?format=sdf&get3d=True  -- InChI=1S/C26H28N4O/c1-29(2)26(31)21-12-8-19(9-13-21)18-6-10-20(11-7-18)25-23-15-27-16-24(25)30(23)17-22-5-3-4-14-28-22/h3-14,23-25,27H,15-17H2,1-2H3/t23-,24+,25? could not be loaded.