ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C13H10N4O3S/c1-7(18)14-10-6-17-5-8(2-3-11(17)15-10)4-9-12(19)16-13(20)21-9/h2-6H,1H3,(H,14,18)(H,16,19,20)/b9-4-/file?format=sdf&get3d=True  -- InChI=1S/C13H10N4O3S/c1-7(18)14-10-6-17-5-8(2-3-11(17)15-10)4-9-12(19)16-13(20)21-9/h2-6H,1H3,(H,14,18)(H,16,19,20)/b9-4- could not be loaded.