ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=InChi=1S/C5H11N3O2/c1-7-5(10)3-8-4(9)2-6/h2-3,6H2,1H3,(H,7,10)(H,8,9)/file?format=sdf&get3d=True  -- InChI=InChi=1S/C5H11N3O2/c1-7-5(10)3-8-4(9)2-6/h2-3,6H2,1H3,(H,7,10)(H,8,9) could not be loaded.