ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C6H14O2/c1-5%287%293-4-6%282%298/h5-8H%2C3-4H2%2C1-2H3/file?format=sdf&get3d=True -- InChI%3DInChI%3D1S/C6H14O2/c1-5%287%293-4-6%282%298/h5-8H%2C3-4H2%2C1-2H3 could not be loaded.