L-tyrosine is an amino acid with the formula C9H11NO3, with a molecular weight of 181.19. L-tyrosine can also be called (2S,3R) -2-amino-3-p-hydroxymethylpropionic acid, CAS number 60-18-4. It appears as a white acicular crystal or crystalline powder, odorless but bitter.
L-tyrosine is an aromatic amino acid that exists naturally in various proteins, among which milk is rich in casein. For us humans and animals, L-tyrosine is an important but non-essential amino acid, which plays an important role in metabolism and growth, and development.
L-tyrosine is mainly used as a nutritive fortification agent and humectant in dairy products, feed, medicine, daily chemical, and other fields, and can also be used in biochemical research. In the field of biochemical research, L-tyrosine can not only be used as a standard for the determination of nitrogen in polypeptides, but also for the colorimetric quantitative analysis of the Milon reaction. In addition, L-tyrosine can also be used as a precursor of dopamine and catecholamine for the preparation of tissue media.