ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/2Na.H2O5S2/c;;1-6(2)5-7(3)4/h;;(H,1,2)(H,3,4)/q2* 1;/p-2/file?format=sdf&get3d=True  -- InChI=1S/2Na.H2O5S2/c;;1-6(2)5-7(3)4/h;;(H,1,2)(H,3,4)/q2* 1;/p-2 could not be loaded.