L-alpha-Aminobutyric acid also known as (S)-2-aminobutanoic acid homoalanine 2-AABA ethylglycine or L-butyrine is a member of the class of compounds known as L-alpha-amino acids. L-alpha-Aminobutyric acid is a non-proteogenic amino acid that can be found in the human kidney in liver tissues and in most biofluids or excreta (e.g. feces breast milk urine and blood).

Euchrestaflavanone B shows antibacterial activity against Gram positive bacteria, Staphylococcus aureus, Bacillus subtilis and Bacillus cereus. Euchrestaflavanone B may function by inhibiting oncogenic disease, at least in part, through the inhibition of protein kinase CKII activity.

Bidenoside C is a flavonoid found in brazilian propolis, the first of its kind to be isolated from a herb of the genus Leech, and has anti-proliferative activity against cancer cells.