Succinprotocetraric acid

Succinprotocetraric acid is an organic chemical compound with the formula C₂₂H₁₈O₁₂. It is the ester of succinic acid and protocetraric acid and it is classified as a depsidone.
Succinprotocetraric acid is produced by certain lichens.

Known sources

Buellia capensisChondropsis semiviridisMenegazzia petraeaParmelia reptansCladonia metacoralliferaCladonia rangiferinaCladonia arbusculaCetraria islandica, though only of a specific chemotype