Anemonin is a furanone dimer found in the Buttercup (Ranunculaceae) family. Anemonin has been shown to regulate tyrosinase-related proteins and mRNA in human melanocytes and may be useful in attenuting osteoarthritis progression.
Protoanemonin is a naturally occurring compound which may be isolated from plants of the family Ranunculaceae. Protoanemonin can also be produced by Pseudomonas sp.