ERROR opening https://cactus.nci.nih.gov/chemical/structure/Oc%28c3%29cc%28O1%29c%28c3%29CC%28O%29C1c%28c2%29cc%28O%29c%28O%29c%28O%292/file?format=sdf&get3d=True  -- Oc%28c3%29cc%28O1%29c%28c3%29CC%28O%29C1c%28c2%29cc%28O%29c%28O%29c%28O%292 could not be loaded.