ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H5.C2H4O2.Hg/c1-2-4-6-5-3-1/file?format=sdf&get3d=True -- InChI=1S/C6H5.C2H4O2.Hg/c1-2-4-6-5-3-1 could not be loaded.