ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C7H16N4O2/c8-5(4-6(12)13)2-1-3-11-7(9)10/h5H,1-4,8H2,(H,12,13)(H4,9,10,11)/t5-/m0/s1/file?format=sdf&get3d=True  -- InChI=1S/C7H16N4O2/c8-5(4-6(12)13)2-1-3-11-7(9)10/h5H,1-4,8H2,(H,12,13)(H4,9,10,11)/t5-/m0/s1 could not be loaded.