def coreactant_dict(smiles_dict):
    """Create tab-formatted coreactant entries."""
    coreactants = {
        "ATP": "ATP		" + smiles_dict["ATP"],
        "ADP": "ADP		" + smiles_dict["ADP"],
        "S-Adenosylmethionine": "S-Adenosylmethionine		"
        + smiles_dict["S-Adenosylmethionine"],
    }
    return coreactants