ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%3DCC2%3DC%28C%3DC1%29SC3%3DC%28S2%29C%3DC%28C%3DC3%29C/file?format=sdf&get3d=True  -- CC1%3DCC2%3DC%28C%3DC1%29SC3%3DC%28S2%29C%3DC%28C%3DC3%29C could not be loaded.