ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C4F6O3/c5-3(6,7)1(11)13-2(12)4(8,9)10/file?format=sdf&get3d=True  -- InChI=1S/C4F6O3/c5-3(6,7)1(11)13-2(12)4(8,9)10 could not be loaded.