ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%28CCC%28%3DCC2%3DCC%3DC%28C%3DC2%29Cl%29C1%28CN3C%3DNC%3DN3%29O%29C/file?format=sdf&get3d=True  -- CC1%28CCC%28%3DCC2%3DCC%3DC%28C%3DC2%29Cl%29C1%28CN3C%3DNC%3DN3%29O%29C could not be loaded.