ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C11H14N4O4/c1-5-7(16)11(2,18)10(19-5)15-4-14-6-8(15)12-3-13-9(6)17/h3-5,7,10,16,18H,1-2H3,(H,12,13,17)/t5-,7-,10-,11-/m1/s1/file?format=sdf&get3d=True  -- InChI=1S/C11H14N4O4/c1-5-7(16)11(2,18)10(19-5)15-4-14-6-8(15)12-3-13-9(6)17/h3-5,7,10,16,18H,1-2H3,(H,12,13,17)/t5-,7-,10-,11-/m1/s1 could not be loaded.