ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C10H20Cl2/c11-9-7-5-3-1-2-4-6-8-10-12/h1-10H2/file?format=sdf&get3d=True  -- InChI=1S/C10H20Cl2/c11-9-7-5-3-1-2-4-6-8-10-12/h1-10H2 could not be loaded.