ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C28H22N2O2/c1-17-9-13-19(14-10-17)29-23-7-3-5-21-25(23)27(31)22-6-4-8-24(26(22)28(21)32)30-20-15-11-18(2)12-16-20/h3-16,29-30H,1-2H3/file?format=sdf&get3d=True  -- InChI=1S/C28H22N2O2/c1-17-9-13-19(14-10-17)29-23-7-3-5-21-25(23)27(31)22-6-4-8-24(26(22)28(21)32)30-20-15-11-18(2)12-16-20/h3-16,29-30H,1-2H3 could not be loaded.