ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C7H6O/c8-6-7-4-2-1-3-5-7/h1-6H/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C7H6O/c8-6-7-4-2-1-3-5-7/h1-6H could not be loaded.