ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C5H11NS2.Na/c1-3-6%284-2%295%287%298/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C5H11NS2.Na/c1-3-6%284-2%295%287%298 could not be loaded.