ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%28CCC2C%28%26%2361%3BCCC3C2%28CCCC3%28C%29C%28%26%2361%3BO%29O%29C%29C1%29C%26%2361%3BC/file?format=sdf&get3d=True -- CC1%28CCC2C%28%26%2361%3BCCC3C2%28CCCC3%28C%29C%28%26%2361%3BO%29O%29C%29C1%29C%26%2361%3BC could not be loaded.