ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C8H8N4/c9-11-8-7-4-2-1-3-6%287%295-10-12-8/h1-5H%2C9H2%2C%28H%2C11%2C12%29/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/C8H8N4/c9-11-8-7-4-2-1-3-6%287%295-10-12-8/h1-5H%2C9H2%2C%28H%2C11%2C12%29 could not be loaded.