ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1CN%28CCC1%28CN2C%3DCC%3DCC2%3DO%29O%29CC3%3DCC%3DCC%3DC3/file?format=sdf&get3d=True  -- C1CN%28CCC1%28CN2C%3DCC%3DCC2%3DO%29O%29CC3%3DCC%3DCC%3DC3 could not be loaded.