ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/2C6H8O7.3Mn/c2*7-3(8)1-6(13,5(11)12)2-4(9)10;;;/h2*13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;/q;;3*+2/p-6/file?format=sdf&get3d=True -- InChI=1S/2C6H8O7.3Mn/c2*7-3(8)1-6(13,5(11)12)2-4(9)10;;;/h2*13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;/q;;3*+2/p-6 could not be loaded.