ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/Fe.H2O4S.4H2O/c;1-5(2,3)4;;;;/h;(H2,1,2,3,4);4*1H2/q 2;;;;;/p-2/file?format=sdf&get3d=True -- InChI=1S/Fe.H2O4S.4H2O/c;1-5(2,3)4;;;;/h;(H2,1,2,3,4);4*1H2/q 2;;;;;/p-2 could not be loaded.