SMILES: C1=CC(=CC=C1C[C@@H](C(=O)N[C@@H](CCC[NH+]=C(N)N)C(=O)[O-])[NH3+])O
Description: The molecule is conjugate acid of L-tyrosyl-L-arginine arising from deprotonation of the carboxy terminus and protonation of the side-chain guanidino group and the amino terminus; major species at pH 7.3. It is a conjugate acid of a Tyr-Arg.