ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC%28O%29%3DO.CC%28O%29%3DO.%5BH%5D%5BC%40%40%5D12C%5BC%40%40H%5D%28O%29CN1C%28%3DO%29%5BC%40%40H%5D%28NC%28%3DO%29%5BC%40%5D%28%5BH%5D%29%28C%5BC%40%40H%5D%28O%29%5BC%40%40H%5D%28NCCN%29NC%28%3DO%29%5BC%40%40H%5D1%5BC%40%40H%5D%28O%29CCN1C%28%3DO%29%5BC%40%40H%5D%28NC%28%3DO%29%5BC%40%40H%5D%28NC2%3DO%29%5BC%40H%5D%28O%29%5BC%40%40H%5D%28O%29C1%3DCC%3DC%28O%29C%3DC1%29%5BC%40H%5D%28O%29CCN%29NC%28%3DO%29CCCCCCCC%5BC%40%40H%5D%28C%29C%5BC%40%40H%5D%28C%29CC%29%5BC%40%40H%5D%28C%29O/file?format=sdf&get3d=True  -- CC%28O%29%3DO.CC%28O%29%3DO.%5BH%5D%5BC%40%40%5D12C%5BC%40%40H%5D%28O%29CN1C%28%3DO%29%5BC%40%40H%5D%28NC%28%3DO%29%5BC%40%5D%28%5BH%5D%29%28C%5BC%40%40H%5D%28O%29%5BC%40%40H%5D%28NCCN%29NC%28%3DO%29%5BC%40%40H%5D1%5BC%40%40H%5D%28O%29CCN1C%28%3DO%29%5BC%40%40H%5D%28NC%28%3DO%29%5BC%40%40H%5D%28NC2%3DO%29%5BC%40H%5D%28O%29%5BC%40%40H%5D%28O%29C1%3DCC%3DC%28O%29C%3DC1%29%5BC%40H%5D%28O%29CCN%29NC%28%3DO%29CCCCCCCC%5BC%40%40H%5D%28C%29C%5BC%40%40H%5D%28C%29CC%29%5BC%40%40H%5D%28C%29O could not be loaded.