Calostomal
Calostomal is an organic compound that has a carboxylic acid and an aldehyde group. It is a red-orange solid that is extracted from the mushroom Calostoma cinnabarinum, hence the name. The structure of this compound was confirmed by NMR and mass spectrometry of the methyl ester derivative. This compound is a highly conjugated polyene somewhat similar to the lycopene found in tomatoes.