ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C18H12O8/c19-10-4-1-8(2-5-10)13-15(22)16(26-18(13)25)14(17(23)24)9-3-6-11(20)12(21)7-9/h1-7,19-22H,(H,23,24)/file?format=sdf&get3d=True  -- InChI=1S/C18H12O8/c19-10-4-1-8(2-5-10)13-15(22)16(26-18(13)25)14(17(23)24)9-3-6-11(20)12(21)7-9/h1-7,19-22H,(H,23,24) could not be loaded.