ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q; 1/p-1/file?format=sdf&get3d=True  -- InChI=1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q; 1/p-1 could not be loaded.