ERROR opening https://cactus.nci.nih.gov/chemical/structure/O%28c1ccc%28cc1OC%29C%5CC%3DC%29CC%28O%29CNCCOc2ccccc2OC/file?format=sdf&get3d=True  -- O%28c1ccc%28cc1OC%29C%5CC%3DC%29CC%28O%29CNCCOc2ccccc2OC could not be loaded.