(1,1'-Biphenyl)-3,3'-dipropanoic acid, alpha,alpha'-diamino-5-(4-(2-amino-2-carboxyethyl)phenoxy)-6,6'-dihydroxy-, (3(S)-(3(R*),3'(R*),5(R*)))- 126723-16-8 5-(4''-(2-Carboxy-2-aminoethyl)phenoxy)-3,3'-dityrosine Pulcherosine