ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C11H12N2/c12-9-4-7-2-1-3-10-11(7)8(5-9)6-13-10/h1-3,6,9,13H,4-5,12H2/file?format=sdf&get3d=True  -- InChI=1S/C11H12N2/c12-9-4-7-2-1-3-10-11(7)8(5-9)6-13-10/h1-3,6,9,13H,4-5,12H2 could not be loaded.