ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H7O4P.2K/c7-11(8,9)10-6-4-2-1-3-5-6;;/h1-5H,(H2,7,8,9);;/q;2*+1/p-2/file?format=sdf&get3d=True  -- InChI=1S/C6H7O4P.2K/c7-11(8,9)10-6-4-2-1-3-5-6;;/h1-5H,(H2,7,8,9);;/q;2*+1/p-2 could not be loaded.