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.

Tris HCl is a common biological test reagent.

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