ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1/C20H12/c1-5-13-
6-2-11-17-18-12-
4-8-14-7-3-10-16
(20(14)18)15(9-1)19
(13)17/h1-12H/file?format=sdf&get3d=True -- InChI=1/C20H12/c1-5-13-
6-2-11-17-18-12-
4-8-14-7-3-10-16
(20(14)18)15(9-1)19
(13)17/h1-12H could not be loaded.