ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%3DC%28C%3DCC%28%3DC1%29OC2%3DC%28C%3DCC%3DN2%29C%28F%29%28F%29F%29C3%3DC%28C%28%3DO%29NC%28%3DO%29N3C%29C/file?format=sdf&get3d=True  -- CC1%3DC%28C%3DCC%28%3DC1%29OC2%3DC%28C%3DCC%3DN2%29C%28F%29%28F%29F%29C3%3DC%28C%28%3DO%29NC%28%3DO%29N3C%29C could not be loaded.