ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/2C16H32O2.Cu/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16(17)18;/h2*2-15H2,1H3,(H,17,18);/q;;+2/p-2/file?format=sdf&get3d=True -- InChI=1S/2C16H32O2.Cu/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16(17)18;/h2*2-15H2,1H3,(H,17,18);/q;;+2/p-2 could not be loaded.