ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/2Na.3H2O.3O.Sn/h;;3*1H2;;;;/q2*+1;;;;;2*-1;/file?format=sdf&get3d=True -- InChI=1S/2Na.3H2O.3O.Sn/h;;3*1H2;;;;/q2*+1;;;;;2*-1; could not be loaded.