L(-)-Phenylalanine
CAS NO.:63-91-2
[USP(24)/NF19]
DESCRIPTION
 White or off-white sheet crystal or white crystalline powder, slight special smell and bitterness, melting and decomposing at 283℃, slightly soluble in water, ethanol and aether.
Molecular Formula C9H11NO2
Structural Formula
Molecular Weight 165.19

SPECIFICATION

Assay (anhydrous basis)

 98.5%～101.5%

Loss On Drying（105℃ 4hr）

 0.3% Max
Specific Rotation (c=2,H2O)

-33.0°～-35.0°(anhydrous basis)
Heavy Metals (as Pb) 10mg/kg Max
Residue on Ignition 0.2%Max
pH(1.0g/100ml H2O ) 5.4～6.0
[Cl-] 0.02% Max
[NH4+] 0.05% Max
Arsenic (as As2O3) 2.0mg/kg Max

MAIN FUNCTION AND PURPOSE

L(-)-phenylalanine is a bioactive aromatic amino acid. It is a necessary amino acid which cannot be self-synthesized by human and animals. It is necessary for a person to intake 2.2g L -phenylalanine every day. As one of the eight necessary amino acids for human body, it has been widely used in pharmaceutical and food additive industry. It is an important ingredient of amino acid injection. In food processing industry, L(-)-phenylalanine can be added into bakery foods. And the nutrition of phenylalanine can be enhanced and by amido-carboxylation with glucide, L(-)-phenylalanine can enhance foods aroma and keep the balance of necessary amino acids. In pharmaceutical industry, L-phenylalanine is used as intermediate of some amino anticancer pharmaceuticals such as formylmerphalanum and etc. It is also used to manufacture adrenalin, thyroxin and melanin. Another important application is to synthesize aspartame with L(+)-aspartic acid.
PACKING
 25kg net weight in cardboard drum or according to customer requirements
STORAGE
 Kept airtightly in a light-proof, dry and cool place.