ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C3F6.C2H2F2/c4-1%282%285%296%293%287%2C8%299%3B1-2%283%294/h%3B1H2/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C3F6.C2H2F2/c4-1%282%285%296%293%287%2C8%299%3B1-2%283%294/h%3B1H2 could not be loaded.