ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1/C9H6O2/c10-9-6-5-7-3-1-2-4-8(7)11-9/h1-6H/file?format=sdf&get3d=True -- InChI=1/C9H6O2/c10-9-6-5-7-3-1-2-4-8(7)11-9/h1-6H could not be loaded.