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Factory Supply High Quality DL-Phenylalanine and L-Phenylalanine

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  • Product name: L-Phenylalanine
  • Cas No: 63-91-2
  • Assay: 99.0-101.0%
  • Description: White crystals or crystalline powder, odorless or slightly characteristic odor, slightly bitter taste
  • Uses: Infusion
  • Pharmacopeia: JP,USP,EP,FCC
  • Standard: GMP, Kosher, HALAL, ISO9001, HACCP
  • Unit: KG
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    Product Description

    Phenylalanine is an essential aromatic amino acid in humans (provided by food), Phenylalanine plays a key role in the biosynthesis of other amino acids and is important in the structure and function of many proteins and enzymes. Phenylalanine is converted to tyrosine, used in the biosynthesis of dopamine and norepinephrine neurotransmitters. The L-form of Phenylalanine is incorporated into proteins, while the D-form acts as a painkiller. Absorption of ultraviolet radiation by Phenylalanine is used to quantify protein amounts.
    L-phenylalanine is the L-enantiomer of phenylalanine. It has a role as a nutraceutical, a micronutrient, an Escherichia coli metabolite, a Saccharomyces cerevisiae metabolite, a plant metabolite, an algal metabolite, a mouse metabolite, a human xenobiotic metabolite and an EC 3.1.3.1 (alkaline phosphatase) inhibitor. It is an erythrose 4-phosphate/phosphoenolpyruvate family amino acid, a proteinogenic amino acid, a phenylalanine and a L-alpha-amino acid. It is a conjugate base of a L-phenylalaninium. It is a conjugate acid of a L-phenylalaninate. It is an enantiomer of a D-phenylalanine. It is a tautomer of a L-phenylalanine zwitterion.

    BASIC ANALYSIS

    Analysis

    Description

    Test Method

    Assay (dry basis)

    99.0~101.0%

    HPLC

    Loss on drying

    Not More Than 0.20%

    Dryer

    Residue on ignition

    Not More Than 0.10%

    Ph. Eur.

    Related substances

    Not More Than 0.5%

    Ph. Eur.

    Endotoxin*

    Less Than 6.0 EU/g

    Ph. Eur.

    State of solution(Transmittance)

    Not Less Than 98.0%

    Ph. Eur.

    PH

    6.5~7.5

     Ph. Eur.

    Specific rotation[α]20D

    -33.5~-35.0°

     Ph. Eur.

    Specific rotation[α]25D

    -32.7~-34.7°

     Ph. Eur.

    Ammonium (NH4)

    Not More Than 0.020%

      Ph. Eur.

    Chloride (Cl)

    Not More Than 0.020%

     Ph. Eur.

    Sulfate (SO4)

    Not More Than 0.020%

     Ph. Eur.

    Iron (Fe)

    Not More Than 10 ppm

    ICP-MS/AOAC 993.14

    Arsenic (As)

    < 1 ppm

    ICP-MS/AOAC 993.14

    Cadmium (Cd)

    < 2 ppm

    ICP-MS/AOAC 993.14

    Heavy metals (Pb)

    Not More Than 10 ppm

    ICP-MS/AOAC 993.14

    Mercury (Hg)

    < 0.5 ppm

    ICP-MS/AOAC 993.14

    Microbial Analysis

    Total Plate Count < 3,000 cfu/g AOAC 990.12
    Total Yeast & Mold < 300 cfu/g AOAC 997.02
    E. Coli < 10 cfu/g AOAC 991.14
    Coliforms < 10 cfu/g AOAC 991.14
    Salmonella Negative ELFA-AOAC
    Staphylococcus < 10 cfu/g AOAC 2003.07

    Function

    The essential amino acid L-phenylalanine (Phe) is needed for the synthesis of proteins, catecholamines, and melanin; it is also an important precursor of the amino acid L-tyrosine (Tyr).

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  • Product Detail

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    About Us

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