ERROR opening https://cactus.nci.nih.gov/chemical/structure/C12C%28O%5BSb%5D3OC%28C%28O%5BSb%5D%28O1%29OC2%3DO%29C%28%3DO%29%5BO-%5D%29C%28%3DO%29O3%29C%28%3DO%29%5BO-%5D.O.O.O.%5BK%2B%5D.%5BK%2B%5D/file?format=sdf&get3d=True -- C12C%28O%5BSb%5D3OC%28C%28O%5BSb%5D%28O1%29OC2%3DO%29C%28%3DO%29%5BO-%5D%29C%28%3DO%29O3%29C%28%3DO%29%5BO-%5D.O.O.O.%5BK%2B%5D.%5BK%2B%5D could not be loaded.