ERROR opening https://cactus.nci.nih.gov/chemical/structure/CCC%5BC%40%40H%5D1CC2%3DCC%28%3DO%29CC%5BC%40%40%5D2%28%5BC%40%40H%5D3%5BC%40%40H%5D1%5BC%40%40H%5D4CC%5BC%40%5D%28%5BC%40%5D4%28CC3%29C%29%28CCC%28%3DO%29O%29O%29C/file?format=sdf&get3d=True  -- CCC%5BC%40%40H%5D1CC2%3DCC%28%3DO%29CC%5BC%40%40%5D2%28%5BC%40%40H%5D3%5BC%40%40H%5D1%5BC%40%40H%5D4CC%5BC%40%5D%28%5BC%40%5D4%28CC3%29C%29%28CCC%28%3DO%29O%29O%29C could not be loaded.