SMILES: C1C[C@H](N(C1)C(=O)[C@@H]2CCCN2C(=O)[C@H](CCC[NH+]=C(N)N)[NH3+])C(=O)NCC(=O)N[C@@H](CC3=CC=CC=C3)C(=O)N[C@@H](CO)C(=O)N4CCC[C@H]4C(=O)N[C@@H](CC5=CC=CC=C5)C(=O)N[C@@H](CCC[NH+]=C(N)N)C(=O)[O-]
Description: The molecule is a peptide cation obtained by deprotonation of the carboxy group and protonation of the amino and guanidino groups of bradykinin; major species at pH 7.3. It is a tautomer of a bradykinin.