SMILES: C1=CC(=CC=C1C[C@@H](C(=O)N[C@@H](CCCN=C(N)N)C(=O)O)N)O
Description: The molecule is a dipeptide composed of L-tyrosine and L-arginine joined by a peptide linkage. It is a conjugate base of a L-tyrosiniumyl-L-arginine(1+).