ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1%3DCC%28%3DC2C%28%3DC1%29OC%28O2%29%28F%29F%29C3%3DCNC%3DC3C%23N/file?format=sdf&get3d=True  -- C1%3DCC%28%3DC2C%28%3DC1%29OC%28O2%29%28F%29F%29C3%3DCNC%3DC3C%23N could not be loaded.