Secretin, porcine TFA (Porcine secretin TFA) is a 27-amino acid peptide, acting on pancreatic acinar cells and ductal epithelial cells stimulating the production of bicarbonate rich fluid.Secretin porcine stimulates pancreatic and gastric secretions to aid in the diagnosis of pancreatic exocrine dysfunction and the diagnosis of gastrinoma.

L-Mimosine is a non-protein amino acid, and acts as an iron chelator.

5-Hydroxy-3-(4-hydroxybenzyl)-7-methoxychroman-4-one is a natural product of Agave, Amaryllidaceae. 5-Hydroxy-3-(4-hydroxybenzyl)-7-methoxychroman-4-one can be used as a reference standard.