ERROR opening https://cactus.nci.nih.gov/chemical/structure/CCCCN1CCC%28CNC%28%3DO%29c2c3n%28c4ccccc24%29CCCO3%29CC1/file?format=sdf&get3d=True  -- CCCCN1CCC%28CNC%28%3DO%29c2c3n%28c4ccccc24%29CCCO3%29CC1 could not be loaded.