ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C8H12N4/c1-7%282%2C5-9%2911-12-8%283%2C4%296-10/h1-4H3/b12-11%2B/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/C8H12N4/c1-7%282%2C5-9%2911-12-8%283%2C4%296-10/h1-4H3/b12-11%2B could not be loaded.