ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1CCC%28CC1%29COC2%3DCC%3DCC%28%3DC2%29%5BC%40%40H%5D%28CCN%29O/file?format=sdf&get3d=True  -- C1CCC%28CC1%29COC2%3DCC%3DCC%28%3DC2%29%5BC%40%40H%5D%28CCN%29O could not be loaded.