ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H12N2O4/c1-5(7,3(9)10)6(2,8)4(11)12/h7-8H2,1-2H3,(H,9,10)(H,11,12)/t5-,6?/m1/s1/file?format=sdf&get3d=True  -- InChI=1S/C6H12N2O4/c1-5(7,3(9)10)6(2,8)4(11)12/h7-8H2,1-2H3,(H,9,10)(H,11,12)/t5-,6?/m1/s1 could not be loaded.