ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/Al.B12/c%3B1-2-4-6-8-10-12-11-9-7-5-3-1/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/Al.B12/c%3B1-2-4-6-8-10-12-11-9-7-5-3-1 could not be loaded.