ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C12H16N2/c1-2-11(9-13-5-1)12-8-10-3-6-14(12)7-4-10/h1-2,5,9-10,12H,3-4,6-8H2/file?format=sdf&get3d=True  -- InChI=1S/C12H16N2/c1-2-11(9-13-5-1)12-8-10-3-6-14(12)7-4-10/h1-2,5,9-10,12H,3-4,6-8H2 could not be loaded.