β-Casomorphin Fragment 1-5 (BCM5), an opioid receptor agonist, is a member of the β-casomorphin peptide family derived from β-casein. β-casomorphins are used to study their differential effects on processes such as hyperglycemia, oxidative stress, opioid signalling and immunosuppression.

2-Hexylthiophene, a weakly basic heteroaromatic compound, can enhance the molar absorption coefficient of ruthenium sensitizers by undergoing modification.

Bentiromide is a peptide used in the bentiromide test to monitor the adequacy of supplemental pancreatic therapy and to screen exocrine pancreatic insufficiency.