ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C7H8O/c1-6-4-2-3-5-7(6)8/h2-5,8H,1H3/file?format=sdf&get3d=True  -- InChI=1S/C7H8O/c1-6-4-2-3-5-7(6)8/h2-5,8H,1H3 could not be loaded.