ERROR opening https://cactus.nci.nih.gov/chemical/structure/C%3DC.O.%5BCl-%5D.%5BCl-%5D.%5BCl-%5D.%5BK%2B%5D.%5BPt%2B2%5D/file?format=sdf&get3d=True  -- C%3DC.O.%5BCl-%5D.%5BCl-%5D.%5BCl-%5D.%5BK%2B%5D.%5BPt%2B2%5D could not be loaded.