Ferrate(8-), (3,8,13,17-tetrakis(carboxymethyl)-7,8,12,13-tetrahydro-8,13-dimethyl-21H,23H-porphine-2,7,12,18-tetrapropanoato(10-)-N21,N22,N23,N24)-, octahydrogen, (SP-4-2-(7S-(7alpha,8beta,12alpha,13beta)))-