ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H12O/c1-2-3-4-5-6-7/h3-4,7H,2,5-6H2,1H3/b4-3-/file?format=sdf&get3d=True  -- InChI=1S/C6H12O/c1-2-3-4-5-6-7/h3-4,7H,2,5-6H2,1H3/b4-3- could not be loaded.