ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%3DC%5BC%40%5D2%28%5BH%5D%29%5BC%40%40%5D%28CC1%29%28%5BH%5D%29%5BC%40%5D%28C%29%28O%29CC%5BC%40H%5D2C%28C%29C/file?format=sdf&get3d=True  -- CC1%3DC%5BC%40%5D2%28%5BH%5D%29%5BC%40%40%5D%28CC1%29%28%5BH%5D%29%5BC%40%5D%28C%29%28O%29CC%5BC%40H%5D2C%28C%29C could not be loaded.