Boletocrocin is any one of a group of seven closely related organic compounds, individually named boletocrocin A through boletrocrocin G. [1] These compounds are polyene dicarboxylic acids that include both lipophilic and polar amino acids. [2] They were extracted from the brightly colored mushrooms Boletus laetissimus and B. rufoaureus . [2] The boletocrocins' conjugated systems account for the intense color.
Related biological pigments are present in other fungi, such as calostomal (from Calostoma cinnabarinum ), [3] melanocrocin (from Melanogaster broomeianus ), [4] and mycenaaruin A (from Mycena aurantiomarginata ). [1]