ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C8H16N2O4/c1-6(11)10(14)5-3-2-4-7(9)8(12)13/h7,14H,2-5,9H2,1H3,(H,12,13)/t7-/m0/s1/file?format=sdf&get3d=True  -- InChI=1S/C8H16N2O4/c1-6(11)10(14)5-3-2-4-7(9)8(12)13/h7,14H,2-5,9H2,1H3,(H,12,13)/t7-/m0/s1 could not be loaded.