ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/2Na.H2O6S2/c;;1-7(2,3)8(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2* 1;/p-2/file?format=sdf&get3d=True  -- InChI=1S/2Na.H2O6S2/c;;1-7(2,3)8(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2* 1;/p-2 could not be loaded.