ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C12H17N5O4/c1-2-13-10-7-11(15-4-14-10)17(5-16-7)12-9(20)8(19)6(3-18)21-12/h4-6,8-9,12,18-20H,2-3H2,1H3,(H,13,14,15)/file?format=sdf&get3d=True  -- InChI=1S/C12H17N5O4/c1-2-13-10-7-11(15-4-14-10)17(5-16-7)12-9(20)8(19)6(3-18)21-12/h4-6,8-9,12,18-20H,2-3H2,1H3,(H,13,14,15) could not be loaded.