ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN%28C%29CCCN1C2%3DCC%3DCC%3DC2SC3%3DC1C%3DC%28C%3DC3%29C%28F%29%28F%29F/file?format=sdf&get3d=True  -- CN%28C%29CCCN1C2%3DCC%3DCC%3DC2SC3%3DC1C%3DC%28C%3DC3%29C%28F%29%28F%29F could not be loaded.