ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C8H7N3O2/c9-5-3-1-2-4-6%285%298%2813%2911-10-7%284%2912/h1-3H%2C9H2%2C%28H%2C10%2C12%29%28H%2C11%2C13%29/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C8H7N3O2/c9-5-3-1-2-4-6%285%298%2813%2911-10-7%284%2912/h1-3H%2C9H2%2C%28H%2C10%2C12%29%28H%2C11%2C13%29 could not be loaded.