ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C2H4.3ClH.K.H2O.Pt/c1-2/file?format=sdf&get3d=True  -- InChI=1S/C2H4.3ClH.K.H2O.Pt/c1-2 could not be loaded.