ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1C2CC3CC1CC%28C2%29C3NC%28%3DO%29C4%3DCC%3DC%28C%3DC4%29Cl/file?format=sdf&get3d=True  -- C1C2CC3CC1CC%28C2%29C3NC%28%3DO%29C4%3DCC%3DC%28C%3DC4%29Cl could not be loaded.