ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1CN2C%28CC3%3DCNC4%3DC3C2%3DCC%3DC4%29CN1CCCC%28%3DO%29C5%3DCC%3DC%28C%3DC5%29F/file?format=sdf&get3d=True  -- C1CN2C%28CC3%3DCNC4%3DC3C2%3DCC%3DC4%29CN1CCCC%28%3DO%29C5%3DCC%3DC%28C%3DC5%29F could not be loaded.