ERROR opening https://cactus.nci.nih.gov/chemical/structure/CCOC%28%3DO%29c1c%28n%28c2c1c%28c%28c%28c2%29Br%29O%29CN%28C%29C%29C%29CSc3ccccc3/file?format=sdf&get3d=True  -- CCOC%28%3DO%29c1c%28n%28c2c1c%28c%28c%28c2%29Br%29O%29CN%28C%29C%29C%29CSc3ccccc3 could not be loaded.