ERROR opening https://cactus.nci.nih.gov/chemical/structure/O%5BC%40%40H%5D%28CNC%29C1%3DCC%3DCC%3DC1/file?format=sdf&get3d=True -- O%5BC%40%40H%5D%28CNC%29C1%3DCC%3DCC%3DC1 could not be loaded.