ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%26%2361%3B1S/C2Cl4F2/c3-1%284%2C7%292%285%2C6%298/file?format=sdf&get3d=True  -- InChI%3DInChI%26%2361%3B1S/C2Cl4F2/c3-1%284%2C7%292%285%2C6%298 could not be loaded.