ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1ccc2cc-3c%28cc2c1%29-c4cccc5c4c3ccc5/file?format=sdf&get3d=True  -- c1ccc2cc-3c%28cc2c1%29-c4cccc5c4c3ccc5 could not be loaded.