ERROR opening https://cactus.nci.nih.gov/chemical/structure/O%26%2361%3B%26%2391%3BCl%2B%26%2393%3B%26%2361%3BO.%26%2391%3BO-%26%2393%3BCl%28%26%2361%3BO%29%28%26%2361%3BO%29%26%2361%3BO/file?format=sdf&get3d=True -- O%26%2361%3B%26%2391%3BCl%2B%26%2393%3B%26%2361%3BO.%26%2391%3BO-%26%2393%3BCl%28%26%2361%3BO%29%28%26%2361%3BO%29%26%2361%3BO could not be loaded.