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Top Grade Nutritional Supplements L-Histidine

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  • Product name: L-Histidine
  • Cas No: 71-00-1
  • Assay: 99.0-101.0%
  • Description: White crystals or crystalline powder, odorless, slightly bitter acid taste
  • Uses: Infusion, Cell culture media, Biotech, Dietary Supplement
  • Pharmacopeia: USP,EP,FCC
  • Standard: GMP, Kosher, HALAL, ISO9001, HACCP
  • Unit: KG
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    Product Description

    Histidine is a semi-essential amino acid (children should obtain it from food) needed in humans for growth and tissue repair, Histidine is important for maintenance of myelin sheaths that protect nerve cells and is metabolized to the neurotransmitter histamine. Histamines play many roles in immunity, gastric secretion, and sexual functions. Histidine is also required for blood cell manufacture and protects tissues against damage caused by radiation and heavy metals.

    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

    7.0~8.5

     Ph. Eur.

    Specific rotation[α]20D

    +12.0~+12.8°

     Ph. Eur.

    Specific rotation[α]25D

    +12.6~+14.0°

     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

    L-histidine (HIS) is an essential amino acid with unique roles in proton buffering, metal ion chelation, scavenging of reactive oxygen and nitrogen species, erythropoiesis, and the histaminergic system.

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  • Product Detail

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