ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C15H14N2O4S/c1-21-14-8-7-12(11-5-3-2-4-6-11)9-13(14)17-10-15(18)16-22(17,19)20/h2-9H,10H2,1H3,(H,16,18)/file?format=sdf&get3d=True  -- InChI=1S/C15H14N2O4S/c1-21-14-8-7-12(11-5-3-2-4-6-11)9-13(14)17-10-15(18)16-22(17,19)20/h2-9H,10H2,1H3,(H,16,18) could not be loaded.