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High Quality Amino Acid Powder L-leucine

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  • Product name: L-Leucine
  • Cas No: 61-90-5
  • Assay: 99.0-101.0%
  • Description: White crystals or crystalline powder, odorless or slightly characteristic odor, slightly bitter taste
  • Uses: Infusion, Cell culture media, Dietary Supplement
  • Pharmacopeia: JP,USP,EP,FCC
  • Standard: GMP, Kosher, HALAL, ISO9001, HACCP
  • Unit: KG
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    Product Description

    Leucine is an essential amino acid that is used in the biosynthesis of proteins. Leucine is an α-amino acid, meaning it contains an α-amino group (which is in the protonated −NH3+ form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO form under biological conditions), and a side chain isobutyl group, making it a non-polar aliphatic amino acid. It is essential in humans, meaning the body cannot synthesize it: it must be obtained from the diet. Human dietary sources are foods that contain protein, such as meats, dairy products, soy products, and beans and other legumes. It is encoded by the codons UUA, UUG, CUU, CUC, CUA, and CUG.

    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

    5.5~6.5

     Ph. Eur.

    Specific rotation[α]20D

    +14.9~+16.0°

     Ph. Eur.

    Specific rotation[α]25D

    +14.9~+17.3°

     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

    Leucine is an essential amino acid for protein synthesis. Additionally, similarly to other amino acids, the carbon skeleton of leucine can be used to generate ATP. However, leucine can also regulate several cellular processes such as protein synthesis, tissue regeneration, and metabolism.

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