ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C6H5N3/c1-2-4-6-5%283-1%297-9-8-6/h1-4H%2C%28H%2C7%2C8%2C9%29/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/C6H5N3/c1-2-4-6-5%283-1%297-9-8-6/h1-4H%2C%28H%2C7%2C8%2C9%29 could not be loaded.