ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/2C5H9NO4.Mg/c2%2A6-3%285%289%2910%291-2-4%287%298%3B/h2%2A3H%2C1-2%2C6H2%2C%28H%2C7%2C8%29%28H%2C9%2C10%29%3B/q%3B%3B%202/p-2/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/2C5H9NO4.Mg/c2%2A6-3%285%289%2910%291-2-4%287%298%3B/h2%2A3H%2C1-2%2C6H2%2C%28H%2C7%2C8%29%28H%2C9%2C10%29%3B/q%3B%3B%202/p-2 could not be loaded.