ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C4H9NS2/c1-5(2)4(6)7-3/h1-3H3/file?format=sdf&get3d=True  -- InChI=1S/C4H9NS2/c1-5(2)4(6)7-3/h1-3H3 could not be loaded.