ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C28H26N2O4/c29-18(13-17-15-30-26-12-6-5-7-19(17)26)14-24(27(31)32)28(33)34-16-25-22-10-3-1-8-20(22)21-9-2-4-11-23(21)25/h1-12,15,18,24-25,30H,13-14,16,29H2,(H,31,32)/t18?,24-/m1/s1/file?format=sdf&get3d=True  -- InChI=1S/C28H26N2O4/c29-18(13-17-15-30-26-12-6-5-7-19(17)26)14-24(27(31)32)28(33)34-16-25-22-10-3-1-8-20(22)21-9-2-4-11-23(21)25/h1-12,15,18,24-25,30H,13-14,16,29H2,(H,31,32)/t18?,24-/m1/s1 could not be loaded.