ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H12O6.C2H4O2/c7-1-3(9)5(11)6(12)4(10)2-8/file?format=sdf&get3d=True  -- InChI=1S/C6H12O6.C2H4O2/c7-1-3(9)5(11)6(12)4(10)2-8 could not be loaded.