ERROR opening https://cactus.nci.nih.gov/chemical/structure/COCCCN1CCC%28CC1%29NC%28%3DO%29C2%3DCC%28%3DC%28C3%3DC2OCC3%29N%29Cl/file?format=sdf&get3d=True  -- COCCCN1CCC%28CC1%29NC%28%3DO%29C2%3DCC%28%3DC%28C3%3DC2OCC3%29N%29Cl could not be loaded.