ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC%2528C%2529OP%2528%2526%252361%253BO%2529%2528C%2529F/file?format=sdf&get3d=True  -- CC%2528C%2529OP%2528%2526%252361%253BO%2529%2528C%2529F could not be loaded.