ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C15H20N2/c1-16-7-5-12-9-17-8-6-11-3-2-4-13(15(11)17)14(12)10-16/h2-4,12,14H,5-10H2,1H3/t12-,14-/m1/s1/file?format=sdf&get3d=True  -- InChI=1S/C15H20N2/c1-16-7-5-12-9-17-8-6-11-3-2-4-13(15(11)17)14(12)10-16/h2-4,12,14H,5-10H2,1H3/t12-,14-/m1/s1 could not be loaded.