ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1cc%28ccc1C%3DCC%3DCC%28%3DO%29C%3DCc2ccc%28cc2%29O%29O/file?format=sdf&get3d=True -- c1cc%28ccc1C%3DCC%3DCC%28%3DO%29C%3DCc2ccc%28cc2%29O%29O could not be loaded.