Mimosine
![Ball-and-stick model of the L-mimosine zwitterion](/Images/godic/202501/27/L-Mimosine_zwitterion_ball0945.png")
Mimosine or leucenol is an alkaloid, β-3-hydroxy-4 pyridone amino acid. It is a toxic non-protein free amino acid otherwise chemically similar to tyrosine, and was first isolated from Mimosa pudica. It occurs in a few other Mimosa spp. and all members of the closely related genus Leucaena.