ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C9H8N2/c10-8-5-6-11-9-4-2-1-3-7(8)9/h1-6H,(H2,10,11)/file?format=sdf&get3d=True  -- InChI=1S/C9H8N2/c10-8-5-6-11-9-4-2-1-3-7(8)9/h1-6H,(H2,10,11) could not be loaded.