ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%26%2361%3B1S/C6H8O7.Mg/c7-3%288%291-6%2813%2C5%2811%2912%292-4%289%2910%26%2359%3B/h13H%2C1-2H2%2C%28H%2C7%2C8%29%28H%2C9%2C10%29%28H%2C11%2C12%29%26%2359%3B/q%26%2359%3B%2B2/p-2/file?format=sdf&get3d=True  -- InChI%3DInChI%26%2361%3B1S/C6H8O7.Mg/c7-3%288%291-6%2813%2C5%2811%2912%292-4%289%2910%26%2359%3B/h13H%2C1-2H2%2C%28H%2C7%2C8%29%28H%2C9%2C10%29%28H%2C11%2C12%29%26%2359%3B/q%26%2359%3B%2B2/p-2 could not be loaded.