ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C8H8O4/c1-4-3-6(9)12-5(2)7(4)8(10)11/h3H,1-2H3,(H,10,11)/file?format=sdf&get3d=True  -- InChI=1S/C8H8O4/c1-4-3-6(9)12-5(2)7(4)8(10)11/h3H,1-2H3,(H,10,11) could not be loaded.