ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H6O2S/c1-2-8-6-4-9-3-5(6)7-1/h3-4H,1-2H2/file?format=sdf&get3d=True  -- InChI=1S/C6H6O2S/c1-2-8-6-4-9-3-5(6)7-1/h3-4H,1-2H2 could not be loaded.