ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1cc%28ccc1C2%3DC%28%5BC%40%40H%5D%28c3c%28cc%28cc3O%29O%29C2%29c4cc%28cc%28c4%29O%29O%29c5ccc%28cc5%29O%29O/file?format=sdf&get3d=True -- c1cc%28ccc1C2%3DC%28%5BC%40%40H%5D%28c3c%28cc%28cc3O%29O%29C2%29c4cc%28cc%28c4%29O%29O%29c5ccc%28cc5%29O%29O could not be loaded.