ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C16H12O8/c1-23-16-9(19)2-6(3-10(16)20)15-14(22)13(21)12-8(18)4-7(17)5-11(12)24-15/h2-5,17-20,22H,1H3/file?format=sdf&get3d=True  -- InChI=1S/C16H12O8/c1-23-16-9(19)2-6(3-10(16)20)15-14(22)13(21)12-8(18)4-7(17)5-11(12)24-15/h2-5,17-20,22H,1H3 could not be loaded.