ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H8N2O8/c9-7(10)15-3-1-13-6-4(16-8(11)12)2-14-5(3)6/h3-6H,1-2H2/t3-,4 ,5-,6-/m1/s1/file?format=sdf&get3d=True  -- InChI=1S/C6H8N2O8/c9-7(10)15-3-1-13-6-4(16-8(11)12)2-14-5(3)6/h3-6H,1-2H2/t3-,4 ,5-,6-/m1/s1 could not be loaded.