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