Imidazole is a heterocyclic aromatic organic compound. It can be incorporated into many important biological molecules and acts as a corrosion inhibitor for industrial applications.

L-Lactic acid is a natural product that is used as a food additive.

Glycylglycine is the dipeptide of glycine, it can be used as a buffer for biological systems, as well as in the synthesis of more complex peptides.

Tartaric acid is a white crystalline organic acid that occurs naturally in many plants, most notably in grapes. It has several applications for industrial and pharmaceutical use.

Tris HCl is a common biological test reagent.

TRIS base is an established basimetric standard and buffer used in biochemistry and molecular biology.