ERROR opening https://cactus.nci.nih.gov/chemical/structure/COC1%26%2361%3BC%28C%26%2361%3BCC%28%26%2361%3BC1C%28%26%2361%3BO%29O%29Cl%29Cl/file?format=sdf&get3d=True  -- COC1%26%2361%3BC%28C%26%2361%3BCC%28%26%2361%3BC1C%28%26%2361%3BO%29O%29Cl%29Cl could not be loaded.