ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/2Na.H2O4Se/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2/file?format=sdf&get3d=True -- InChI=1S/2Na.H2O4Se/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 could not be loaded.