ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1C%28OC2%3DCC%3DCC%3DC2O1%29CNCCCN3C%28%3DO%29C%3DCC%3DN3.Cl/file?format=sdf&get3d=True  -- C1C%28OC2%3DCC%3DCC%3DC2O1%29CNCCCN3C%28%3DO%29C%3DCC%3DN3.Cl could not be loaded.