ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C16H12O6/c17-10-2-1-7-15-9(5-19-16(7)14(10)18)8-3-12-13(21-6-20-12)4-11(8)22-15/h1-4,9,15,17-18H,5-6H2/t9-,15-/m0/s1/file?format=sdf&get3d=True  -- InChI=1S/C16H12O6/c17-10-2-1-7-15-9(5-19-16(7)14(10)18)8-3-12-13(21-6-20-12)4-11(8)22-15/h1-4,9,15,17-18H,5-6H2/t9-,15-/m0/s1 could not be loaded.