ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/2C5H9NO4.Mg/c2*6-3(5(9)10)1-2-4(7)8;/h2*3H,1-2,6H2,(H,7,8)(H,9,10);/q;; 2/p-2/file?format=sdf&get3d=True -- InChI=1S/2C5H9NO4.Mg/c2*6-3(5(9)10)1-2-4(7)8;/h2*3H,1-2,6H2,(H,7,8)(H,9,10);/q;; 2/p-2 could not be loaded.