ERROR opening https://cactus.nci.nih.gov/chemical/structure/Clc1ccc%28OC%29c2c1C%28N%28C%29C%29CCC2/file?format=sdf&get3d=True -- Clc1ccc%28OC%29c2c1C%28N%28C%29C%29CCC2 could not be loaded.