Phenylacetylglutamine is a normal constituent of human urine but other mammals such as the dog cat rat monkey sheep and horse do not excrete this compound. Phenylacetylglutamine is a major nitrogenous metabolite that accumulates in uremia. Phenylacetylglutamine also is a microbial metabolite found in Christensenellaceae Lachnospiraceae and Ruminococcaceae.

Rhaponticin(Rhaponiticin) can alleviate liver steatosis and improve blood glucose and lipid profiles in KK/Ay diabetic mice, indicates that rhaponticin has a noticeable antidiabetic effect.

NBD-F is a fluorescent derivatization compound for amino acid analysis.