The molecule is a metalloporphyrin obtained by formal dehydrogenation across positions 7 and 8 of cobalt-precorrin-3. It is a metalloporphyrin and a cobalt corrinoid. It is a conjugate acid of a cobalt(II)-factor III(8-).
cobalt;3-[(2S,3S,7S,8S)-7,13,17-tris(2-carboxyethyl)-3,8,12,18-tetrakis(carboxymethyl)-3,8,10-trimethyl-2,7-dihydroporphyrin-21,23-diid-2-yl]propanoic acid