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Daesang's L-Phenylalanine is a product of fermentation via synthesis using sweeteners from corn as the main raw material. It is an essential amino acid necessary for proper growth of infants and nitrogen balance of adults. It is in the spotlight as a derivative of pharmaceuticals and a main raw material of a high intensity sweetener.












L-Phenylalanine is a dietary essential amino acid and should be obtained from food or dietary supplements.
  L-Phenylalanine exists at about 2 to 5% in protein. It is found in corn and seeds but cannot be easily detached .....from protein.
  L-Phenylalanine can be converted into a different amino acid. Individuals who suffer from Phenylketonuria (PKU)    should not take it .






MW : 165.19









Product Specifications






Identification test

Conforms to FCC Standards

Assay (Dried basis)

98.5% to 102.0%

Arsenic (As)

Not more than 3ppm

Heavy metals (as Pb)

Not more than 20ppm


Not more than 10ppm

Loss on Drying

Not more than 0.3%

Residue on Ignition

Not more than 0.1%

pH(1.0% in solution)

5.4 to 6.0

Specific Rotation (20)

-33.0 to -35.2