SMILES: C[C@@]1([C@@H](C2=CC3=NC(=CC4=C(C(=C([N-]4)C=C5C(=C(C(=N5)C=C1[N-]2)CC(=O)[O-])CCC(=O)[O-])CCC(=O)[O-])CC(=O)[O-])[C@H]([C@]3(C)CC(=O)[O-])CCC(=O)[O-])CCC(=O)[O-])CC(=O)[O-].[Fe]
Description: The molecule is a cyclic tetrapyrrole anion obtained by deprotonation of the carboxy groups of siroheme; major species at pH 7.3. It has a role as a Saccharomyces cerevisiae metabolite and a cofactor. It is a heme and a cyclic tetrapyrrole anion. It is a conjugate base of a siroheme.