ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1/C6H6O3/c7-4-2-1-3-5(8)6(4)9/h1-3,7-9H/file?format=sdf&get3d=True  -- InChI=1/C6H6O3/c7-4-2-1-3-5(8)6(4)9/h1-3,7-9H could not be loaded.