ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/Mn.H4O7P2/c;1-8(2,3)7-9(4,5)6/h;(H2,1,2,3)(H2,4,5,6)/q+4;/p-4/file?format=sdf&get3d=True -- InChI=1S/Mn.H4O7P2/c;1-8(2,3)7-9(4,5)6/h;(H2,1,2,3)(H2,4,5,6)/q+4;/p-4 could not be loaded.