ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C11H14N2O6/c1-5(15)6-3-13(11(18)12-10(6)17)9-2-7(16)8(4-14)19-9/h3,7-9,14,16H,2,4H2,1H3,(H,12,17,18)/file?format=sdf&get3d=True  -- InChI=1S/C11H14N2O6/c1-5(15)6-3-13(11(18)12-10(6)17)9-2-7(16)8(4-14)19-9/h3,7-9,14,16H,2,4H2,1H3,(H,12,17,18) could not be loaded.