ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C12H7N3O4/c16-14(17)7-4-5-10-9(6-7)8-2-1-3-11(15(18)19)12(8)13-10/h1-6,13H/file?format=sdf&get3d=True -- InChI=1S/C12H7N3O4/c16-14(17)7-4-5-10-9(6-7)8-2-1-3-11(15(18)19)12(8)13-10/h1-6,13H could not be loaded.