ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H14O/c1-5-7-6(2,3)4/h5H2,1-4H3/file?format=sdf&get3d=True  -- InChI=1S/C6H14O/c1-5-7-6(2,3)4/h5H2,1-4H3 could not be loaded.