The molecule is an organic heterotetracyclic compound obtained via intramolecular oxidative aromatic coupling of cyclo(L-tyrosyl-L-tyrosyl). It has a role as a metabolite. It is a polyphenol, an organic heterotetracyclic compound and a member of 2,5-diketopiperazines. It derives from a cyclo(L-tyrosyl-L-tyrosyl).
(1S,14S)-6,9-dihydroxy-15,17-diazatetracyclo[12.2.2.13,7.18,12]icosa-3(20),4,6,8,10,12(19)-hexaene-16,18-dione