ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C16H14N2/c17-11-15-16(14-9-5-2-6-10-14)18(15)12-13-7-3-1-4-8-13/h1-10,15-16H,12H2/t15-,16+,18?/m0/s1/file?format=sdf&get3d=True  -- InChI=1S/C16H14N2/c17-11-15-16(14-9-5-2-6-10-14)18(15)12-13-7-3-1-4-8-13/h1-10,15-16H,12H2/t15-,16+,18?/m0/s1 could not be loaded.