ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C11H14N4O4/c16-2-5-9%2817%2910%2818%297%2815-5%294-1-12-8-6%284%2913-3-14-11%288%2919/h1%2C3%2C5%2C7%2C9-10%2C12%2C15-18H%2C2H2%2C%28H%2C13%2C14%2C19%29/t5-%2C7%20%2C9-%2C10%20/m1/s1/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C11H14N4O4/c16-2-5-9%2817%2910%2818%297%2815-5%294-1-12-8-6%284%2913-3-14-11%288%2919/h1%2C3%2C5%2C7%2C9-10%2C12%2C15-18H%2C2H2%2C%28H%2C13%2C14%2C19%29/t5-%2C7%20%2C9-%2C10%20/m1/s1 could not be loaded.