ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C16H12/c1-2-4-8-14-12-16-10-6-5-9-15(16)11-13(14)7-3-1/h1-12H/b2-1-,3-1?,4-2?,7-3-,8-4-,13-7?,14-8?/file?format=sdf&get3d=True -- InChI=1S/C16H12/c1-2-4-8-14-12-16-10-6-5-9-15(16)11-13(14)7-3-1/h1-12H/b2-1-,3-1?,4-2?,7-3-,8-4-,13-7?,14-8? could not be loaded.