N,N',N',N-tetrakis((N-(arginyl-arginyl-prolyl-tyrosyl-isoleucyl-leucine)aminocarbonyl)ethyl)-1,4,8,11-tetraazacyclotetradecane
n,n',n',n-tetrakis((n-(arginyl-arginyl-prolyl-tyrosyl-isoleucyl-leucine)aminocarbonyl)ethyl)-1,4,8,11-tetraazacyclotetradecane