ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%28%5BC%40H%5D%28%5BC%40H%5D1C%28%3DO%29O%5BC%40H%5D%28C/file?format=sdf&get3d=True -- CC1%28%5BC%40H%5D%28%5BC%40H%5D1C%28%3DO%29O%5BC%40H%5D%28C could not be loaded.