ERROR opening https://cactus.nci.nih.gov/chemical/structure/Oc1ccc%28cc1%29C1%28C%28%3DO%29Nc2ccccc12%29c1ccc%28O%29cc1/file?format=sdf&get3d=True  -- Oc1ccc%28cc1%29C1%28C%28%3DO%29Nc2ccccc12%29c1ccc%28O%29cc1 could not be loaded.