ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1/C3H6O3/c1-2-5-6-3-4-1/h1-3H2/file?format=sdf&get3d=True  -- InChI=1/C3H6O3/c1-2-5-6-3-4-1/h1-3H2 could not be loaded.