ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H11N3/c1-5(7)2-6-3-8-4-9-6/h3-5H,2,7H2,1H3,(H,8,9)/file?format=sdf&get3d=True  -- InChI=1S/C6H11N3/c1-5(7)2-6-3-8-4-9-6/h3-5H,2,7H2,1H3,(H,8,9) could not be loaded.