Biochem/physiol Actions L-alanylglycine is a simple nutritional dipeptide also used for physical chemistry studies such as hydrogen bonding and heavy metal complexation. Other Notes Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. A0878.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.