ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C8H16N2O4/c1-5(7(11)12)10-4-2-3-6(9)8(13)14/h5-6,10H,2-4,9H2,1H3,(H,11,12)(H,13,14)/t5-,6-/m0/s1/file?format=sdf&get3d=True  -- InChI=1S/C8H16N2O4/c1-5(7(11)12)10-4-2-3-6(9)8(13)14/h5-6,10H,2-4,9H2,1H3,(H,11,12)(H,13,14)/t5-,6-/m0/s1 could not be loaded.