ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C4H7NOS.ClH/c5-3-1-2-7-4(3)6;/h3H,1-2,5H2;1H/file?format=sdf&get3d=True  -- InChI=1S/C4H7NOS.ClH/c5-3-1-2-7-4(3)6;/h3H,1-2,5H2;1H could not be loaded.