ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/Cu.6H3O4P.O.9Pb/c;6*1-5(2,3)4;;;;;;;;;;/h;6*(H3,1,2,3,4);;;;;;;;;;/q 2;;;;;;;-2;9* 2/p-18/file?format=sdf&get3d=True  -- InChI=1S/Cu.6H3O4P.O.9Pb/c;6*1-5(2,3)4;;;;;;;;;;/h;6*(H3,1,2,3,4);;;;;;;;;;/q 2;;;;;;;-2;9* 2/p-18 could not be loaded.