Product Name: l-tyrosine
Appearance: White powder
Purity: 98%
CAS NO: 55520-40-6
M.F.: 
L-cysteine, a common amino acid in a living organism.As one of the alpha sulfur amino acids, encounter nitroprusside (nitroprusside) purple color (SH), found in many proteins, glutathione, and Ag +, Hg + and Cu + of metal ion can form insoluble mercaptide (mercaptide).Colorless crystals.Soluble in water, ethanol, acetic acid and ammonia, insoluble in ether, acetone, ethyl acetate, benzene, disulfide carbon and carbon tetrachloride.It can be oxidized to cystine in neutral and weakly alkaline solutions.

Tyrosine is a non-essential amino acid, it has to regulate emotions, stimulate the role of the nervous system. In addition to help speed up the body metabolism, treatment of chronic fatigue and other diseases. The body needs enough tyrosine to produce many important brain chemicals to help regulate appetite, pain sensitivity, and the body's response to stress.

1. Pharmaceutically, L-Tyrosine is used in  hyper-thyroidism treatment; Special flavoring can be produced heated and  reacted with saccharides.

2.Usage limit: It takes up 1.6% of the total protein in food( FDA ,§ 172.320 , 1994 )

3.L-TyrosineTransportation:Handle with care, avoid damage on packaging. L-Tyrosine is non-hazardous chemical. Protect it from sunlight and  rains. Keep away from poisonous and harmful substance in transit.