ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1/C2H3Cl3O2/c3-2(4,5)1(6)7/h1,6-7H/file?format=sdf&get3d=True  -- InChI=1/C2H3Cl3O2/c3-2(4,5)1(6)7/h1,6-7H could not be loaded.