ERROR opening https://cactus.nci.nih.gov/chemical/structure/O%3DC%28OCC%29C2%28c1ccccc1%29CCCN%28C%29CC2C/file?format=sdf&get3d=True  -- O%3DC%28OCC%29C2%28c1ccccc1%29CCCN%28C%29CC2C could not be loaded.