ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C24H26O4/c1-4-28-17-18-7-5-6-8-23(18)24(25,19-9-13-21(26-2)14-10-19)20-11-15-22(27-3)16-12-20/h5-16,25H,4,17H2,1-3H3/file?format=sdf&get3d=True  -- InChI=1S/C24H26O4/c1-4-28-17-18-7-5-6-8-23(18)24(25,19-9-13-21(26-2)14-10-19)20-11-15-22(27-3)16-12-20/h5-16,25H,4,17H2,1-3H3 could not be loaded.