ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C18H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h5-6,13-14H,2-4,7-12,15-17H2,1H3,(H,19,20)/b6-5-,14-13-/file?format=sdf&get3d=True  -- InChI=1S/C18H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h5-6,13-14H,2-4,7-12,15-17H2,1H3,(H,19,20)/b6-5-,14-13- could not be loaded.