ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H3N3O8.Pb/c10-5-2(7(12)13)1-3(8(14)15)6(11)4(5)9(16)17;/h1,10-11H;/q;+2/p-2/file?format=sdf&get3d=True -- InChI=1S/C6H3N3O8.Pb/c10-5-2(7(12)13)1-3(8(14)15)6(11)4(5)9(16)17;/h1,10-11H;/q;+2/p-2 could not be loaded.