SMILES: C(C[C@@H](C(=O)[O-])NC(=O)C[C@@H](C(=O)N[C@@H](CC(=O)N[C@@H](CCC[NH+]=C(N)N)C(=O)[O-])C(=O)N[C@@H](CC(=O)N[C@@H](CCC[NH+]=C(N)N)C(=O)[O-])C(=O)[O-])[NH3+])C[NH+]=C(N)N
Description: The molecule is a zwitterion derived from (beta-Asp-Arg)n. Major microspecies at pH 7.3. It is a tautomer of a cyanophycin macromolecule.