SMILES: C/C/1=C/2\\[C@@]([C@@H](C(=N2)/C=C\\3/C([C@@H](C(=N3)/C(=C\\4/[C@]([C@H]([C@@H]([N-]4)[C@]5([C@@]([C@@H](C1=N5)CCC(=O)O)(C)CC(=O)O)C)CC(=O)O)(C)CCC(=O)O)/C)CCC(=O)O)(C)C)CCC(=O)O)(C)CC(=O)O.[Co+2]
Description: The molecule is a cobalt-corrinoid heptacarboxylic acid with 8 methyl groups at positions 1, 2, 5, 7, 12, 15, 17; -CH2COOH groups at positions 2, 7, 18; -CH2CH2COOH groups at positions 3, 8, 13, 17; and divalent cobalt centred among the four nitrogens. It is a part of the vitamin B12 structure. It is a cobalt-corrinoid heptacarboxylic acid and a cobyrinic acid. It derives from a hydrogenobyrinic acid. It is a conjugate acid of a cob(II)yrinate(6-).