ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C30H18/c1-2-6-20-10-24-14-28-18-30-16-26-12-22-8-4-3-7-21%2822%2911-25%2826%2915-29%2830%2917-27%2828%2913-23%2824%299-19%2820%295-1/h1-18H/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C30H18/c1-2-6-20-10-24-14-28-18-30-16-26-12-22-8-4-3-7-21%2822%2911-25%2826%2915-29%2830%2917-27%2828%2913-23%2824%299-19%2820%295-1/h1-18H could not be loaded.