ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C5H11NO3/c1-5(2,3)9-4(7)6-8/h8H,1-3H3,(H,6,7)/file?format=sdf&get3d=True  -- InChI=1S/C5H11NO3/c1-5(2,3)9-4(7)6-8/h8H,1-3H3,(H,6,7) could not be loaded.