Tigogenin, also known as sarsasapogenin, (3beta,5alpha,25s)-isomer or smilagenin, is a member of the class of compounds known as triterpenoids. Triterpenoids are terpene molecules containing six isoprene units. Thus, tigogenin is considered to be a sterol lipid molecule. Tigogenin is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). Tigogenin can be found in fenugreek, which makes tigogenin a potential biomarker for the consumption of this food product.
