ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C3H2F4/c1-2%284%293%285%2C6%297/h1H2/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C3H2F4/c1-2%284%293%285%2C6%297/h1H2 could not be loaded.