ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C12H20N2O8/c13-6(10(16)17)2-1-3-8(12(20)21)22-9(15)5-4-7(14)11(18)19/h6-8H,1-5,13-14H2,(H,16,17)(H,18,19)(H,20,21)/p-1/t6?,7-,8?/m1/s1/file?format=sdf&get3d=True  -- InChI=1S/C12H20N2O8/c13-6(10(16)17)2-1-3-8(12(20)21)22-9(15)5-4-7(14)11(18)19/h6-8H,1-5,13-14H2,(H,16,17)(H,18,19)(H,20,21)/p-1/t6?,7-,8?/m1/s1 could not be loaded.