Diketopiperazine

Trivial name: 

Diketopiperazine dimer

Molecular formulae: 

C40H36N6O4

Molecular weight: 

664.7516 g/mol

Literature reference: 

Kaur A, Raja HA, Darveaux BA, et al. New diketopiperazine dimer from a filamentous fungal isolate of Aspergillus sydowii. Magn Reson Chem. 2015;53(8):616-619.

Structure image: 

Aspergillus Species known to produce this metabolite: