ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C8H7N/c9-7-6-8-4-2-1-3-5-8/h1-5H%2C6H2/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C8H7N/c9-7-6-8-4-2-1-3-5-8/h1-5H%2C6H2 could not be loaded.