The chemical name of tyrosine (Tyr) is 2-amino-3-p-hydroxyphenylpropionic acid. It is an aromatic polar compound containing phenolic hydroxyl groups α- amino acid. Tyrosine is a conditionally essential amino acid and a ketogenic and glycogenic amino acid for human body.
Purpose
Tyrosine is the catalytic substrate of tyrosinase monophenolase function and the main raw material for the final formation of eumelanin and brown melanin. In the research and development of whitening cosmetics, the synthesis of tyrosinase structural analogues competing with tyrosine can also effectively inhibit the production of melanin.
Eating foods containing tyrosine in patients with vitiligo can promote the formation of melanin and reduce the symptoms of vitiligo.
The raw material of amino acid infusion and amino acid compound preparation is used as nutritional supplement. Treat poliomyelitis, nuclear encephalitis, hyperthyroidism and other diseases. It is also used as raw material for manufacturing diiodine tyrosine, dibromo tyrosine and L-dopa.
other: 1. Amino acid drugs. The raw material of amino acid infusion and amino acid compound preparation is used as nutritional supplement. It is used to treat poliomyelitis and tuberculous encephalitis / hyperthyroidism. 2. Nutritional supplements. Medically, it is used to treat myelitis, tuberculous encephalitis, hyperthyroidism and other diseases. It is also used to manufacture L-dopa diiodine tyrosine. After amino carbonyl reaction with sugars, special flavor substances can be generated. 3. It is used in biochemical research and medicine as amino acid nutritional drugs to treat poliomyelitis, encephalitis, hyperthyroidism and other diseases. 4. Biochemical reagents and APIs. It is a non essential amino acid for human body. 5. It can be used for tissue culture (L-tyrosine · 2Na · H2O), biochemical reagents and treatment of hyperthyroidism. It can also be used to prepare food for the elderly and children and plant foliar nutrients. 
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