ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC%28C%5BC%40H%5D%28NC%28%5BC%40H%5D%28NC%28%5BC%40%40H%5D%28NC%28%5BC%40%40H%5D%28NC%28%5BC%40%40H%5D%28NC%28%5BC%40%40H%5D%28NC%28%5BC%40%40H%5D1CCC%28N1%29%3DO%29%3DO%29CC2%3DCN%3DCN2%29%3DO%29CC3%3DCNC4%3DCC%3DCC%3DC43%29%3DO%29CO%29%3DO%29CC5%3DCC%3DC%28O%29C%3DC5%29%3DO%29CC6%3DCC7%3DCC%3DCC%3DC7C%3DC6%29%3DO%29C%28N%5BC%40H%5D%28C%28N8CCC%5BC%40H%5D8C%28NNC%28N%29%3DO%29%3DO%29%3DO%29CCC/N%3DC%28N%29%5CN%29%3DO%29C/file?format=sdf&get3d=True -- CC%28C%5BC%40H%5D%28NC%28%5BC%40H%5D%28NC%28%5BC%40%40H%5D%28NC%28%5BC%40%40H%5D%28NC%28%5BC%40%40H%5D%28NC%28%5BC%40%40H%5D%28NC%28%5BC%40%40H%5D1CCC%28N1%29%3DO%29%3DO%29CC2%3DCN%3DCN2%29%3DO%29CC3%3DCNC4%3DCC%3DCC%3DC43%29%3DO%29CO%29%3DO%29CC5%3DCC%3DC%28O%29C%3DC5%29%3DO%29CC6%3DCC7%3DCC%3DCC%3DC7C%3DC6%29%3DO%29C%28N%5BC%40H%5D%28C%28N8CCC%5BC%40H%5D8C%28NNC%28N%29%3DO%29%3DO%29%3DO%29CCC/N%3DC%28N%29%5CN%29%3DO%29C could not be loaded.