L-tyrosine is an amino acid, the molecular formula is C9H11NO3, the molecular weight is 181.19, the appearance is colorless or white crystal or white crystal powder, with a sour taste, its aqueous solution is acidic. When L-tyrosine is heated to 160°C, it will melt and precipitate water molecules, and decompose when the temperature reaches 224℃~225℃.
For humans and animals, L-tyrosine is an important substance needed in metabolism, growth and development. At present, l-tyrosine is widely used in food, medicine, feed, chemical industry and other industries. L-tyrosine can be used in food processing as a food additive and raw material, as a nutritional supplement, and as a raw material for the preparation of antibiotics, peptide hormones, p-hydroxycinnamic acid, p-hydroxystyrene and other drugs.