ERROR opening https://cactus.nci.nih.gov/chemical/structure/OC1%3DCC%3DC2C%28%5BC%40%5D3%28C%28C%29%28C%29%5BC%40%40H%5D%28C2%29N%28CC3%29CCC%23C%29O%29%3DC1/file?format=sdf&get3d=True -- OC1%3DCC%3DC2C%28%5BC%40%5D3%28C%28C%29%28C%29%5BC%40%40H%5D%28C2%29N%28CC3%29CCC%23C%29O%29%3DC1 could not be loaded.