L-Phenylalanine CAS NO 63-91-2 for Pharma Grade (USP)

Product Name:L-Phenylalanine
CAS NO.:  63-91-2
Appearance:white to off-white fine crystalline powder
Product Properties: Slightly peculiar smell and bitterness. Stable under heat, light and air
Packing:25kg/bag , 25kg/drum or as per customer’s requirement

  • Product Name:: L-Phenylalanine
  • CAS NO.: : 63-91-2
  • Product Detail

    L-Phenylalanine (Abbreviated Phe) is an essential amino acid and is the only form of phenylalanine found in proteins. It is one of the 18 common amino acids, and one of the eight essential amino acids at the human body.

    As nutritional supplement,L-phenylalanine can be viewed as a benzyl group substituted for the methyl group of alanine, or a phenyl group in place of a terminal hydrogen of alanine. Most in the body by the phenylalanine hydroxylase catalysis oxidation into tyrosine, and synthetic with tyrosine important neurotransmitters and hormones, to participate in the body metabolism of sugar and fat metabolism.

    L-phenylalanine is a bioactive aromatic amino acid. It is a necessary amino acid which can’t 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.

    L – phenylalanine is the main raw material of the important food additive – sweetener Aspartame (Aspartame). As one of essential amino acids in the body, L-phenylalanine is mainly used for amino acid transfusion and amino acid drugs in the pharmaceutical industry.




    White crystals or crystalline powder







    Loss on drying


    Residue on ignition




    Heavy Metals






    Other amino acids


    Specific Rotation


    CAS-63-91-2-21 CAS-63-91-2-11

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