Glyoxylic acid or oxoacetic acid is an organic compound that is both an aldehyde and a carboxylic acid.It is an intermediate of the glyoxylate cycle which enables certain organisms to convert fatty acids into carbohydrates. The conjugate base of glyoxylic acid is known as glyoxylate.

Allocholic acid is a major component in bile from the river carpsucker, Carpiodes carpio.

β-Amyloid peptide(16-20) is a amino acid sequences (KLVFF) of Amyloid-β (Abeta). β-Amyloid peptide(16-20) is an effective inhibitor of Abeta fibril formation, with RG-/-GR-NH2 residues added at N- and C-terminal ends to aid solubility).