ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H2Cl2O4/c7-1-3(9)5(11)2(8)6(12)4(1)10/h9,12H/file?format=sdf&get3d=True  -- InChI=1S/C6H2Cl2O4/c7-1-3(9)5(11)2(8)6(12)4(1)10/h9,12H could not be loaded.