ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1%3DCC%3DC%28C%3DC1%29C%23N.C1%3DCC%3DC%28C%3DC1%29C%23N.Cl%5BPd%5DCl/file?format=sdf&get3d=True  -- C1%3DCC%3DC%28C%3DC1%29C%23N.C1%3DCC%3DC%28C%3DC1%29C%23N.Cl%5BPd%5DCl could not be loaded.