Phenylalanine betaine is a betaine that can be isolated from Antiaris africana[1].
ChEBI: L-phenylalanine betaine is an L-phenylalanine derivative obtained by trimethylation of the amino function of L-phenylalanine. It is a phenylalanine betaine and a L-phenylalanine derivative. It is an enantiomer of a D-phenylalanine betaine.
[1] Okogun J I, et al. Triterpenoids and betaines from the latex and bark of Antiaris africana[J]. Phytochemistry, 1976, 15(5): 826-827.