L-TYROSINE

Item No.: 00136
L-tyrosine (Tyr), an important nutritional essential amino acid, plays an important role in human and animal metabolism, growth and development. It is widely used in food, feed, medicine, chemical industry and other industries.
  • TYPE:
    AMINO ACID
  • CAS:
    60-18-4
  • EINECS:
    200-460-4
  • HS CODE:
    29225000
Description Specification Applications
Description
PRODUCTS INFORMATION
L-tyrosine (Tyr), an important nutritional essential amino acid, plays an important role in human and animal metabolism, growth and development. It is widely used in food, feed, medicine, chemical industry and other industries. It is often used as a nutritional supplement for patients with phenylketonuria and as a raw material for the preparation of pharmaceutical and chemical products such as polypeptide hormones, antibiotics, L-dopa, melanin, p-hydroxycinnamic acid and p-hydroxystyrene. As more high value-added L-tyrosine derivatives such as Danshensu, resveratrol and hydroxytyrosol are found in organisms, L-tyrosine is developing towards platform compounds.
BASIC INFORMATION AND CHEMICAL PROPERTIES
Form White needle crystal or crystalline powder, odorless
MF C9H11NO3
MW 181.19
Melting point >300 °C (dec.) (lit.)
Boiling point 314.29°C (rough estimate)
Density 1.34
Refractive index -12 ° (C=5, 1mol/L HCl)
Pka 2.2(at 25℃)
Storage temp. Store below +30°C.
Specification
L-Tyrosine First grade 
Assay ≥99.0%
PH 5.0-6.5
Specific rotation[a]D20 -11.3°--12.1°
Specific rotation[a]D25 /
Transmittance(T430) ≥95.0%
Chloride(Cl) ≤0.02%
Ammonium(NH4) ≤0.02%
Sulfate(SO4) ≤0.02%
Iron(Fe) ≤10PPM
Heavy metals(Pb) ≤10PPM
Arsenic ≤1PPM
Other amino acids ≤0.40%
Ninhydrin-positive substances /
Loss on drying ≤0.20%
Residue on ignition ≤0.10%
Organic volatile impurities /
Endotoxin <0.25EU/ml
Applications
1.L-Tyrosine is an important biological reagent.
2.L-Tyrosine can be used in biochemical study, life sciences, agricultural research, beverage additive and feed stuff, etc.
3.L-Tyrosine protects the skin from harmful UV light rays.
4.L-Tyrosine boosts one’s mood, concentration,learning,and memory.
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