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Home Nutrition enhancers L-Leucine
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L-Leucine as a white crystal or crystalline powder, is a non-polar amino acid, slightly bitter taste, soluble in water.

Fooding is a L-Leucine Manufacturers, Suppliers and Wholesalers in China. You can inquiry L-Leucine price by email us: or leave message on the Fooding web. Fooding ensure you can buy L-Leucine with a good L-Leucine price.

Discount Prices Available for Larger Orders.



  • E No:E641
  • CAS No:61-90-5
  • Einecs No:231-375-0
  • Specification:AJI92,USP26,EP4,USP29
  • Routine Packing:25kg/bag
  • Place of origin:China
  • QC:Haccp, Kosher, Hala,Iso
  • Payment terms:T/T or L/C
  • Port of dispapch:Shanghai,Tianjin,Qingdao
  • Applications:L-Leucine as a food additive, nutrition enhancers, widely used in bread, pasta products, spices, E641 can improve food flavor.
  • Tel: +86-21-50321522
  • Fax: +86-21-51069122
  • Email:
  • Product Information

    Product Description
    Safety Ratings Key
    Gluten free
      • Item
      • Specification --AJI92,USP26,EP4,USP29
      • Name
      • L-Leucine
      • Molecular formula
      • C6H13O2
      • Appearance
      • White crystals or crystalline powder
      • Content%
      • 98.5 - 100.5%
      • Specific rotation
      • +14.9 °- +17.3°
      • Loss on drying%
      • ≤ 0.2%
      • Transmittance%
      • 98% min
      • Residue on ignition
      • 0.10% max
      • PH
      • 5.5 - 6.5
      • Chloride
      • ≤ 0.05%
      • Sulfate (SO42-) %
      • 0.020% max
      • Ammonium
      • 0.020% max
      • Organic volatile impurities
      • Meets the requirements
      • Other Amino Acids
      • Meets the requirements
      • Heavy metals
      • ≤ 0.0015%
      • Iron
      • ≤ 0.003%


    About L-Leucine

    L-Leucine as a white shiny hexahedral crystals or white crystalline powder. L-Leucine slightly bitter taste. Sublimation at 145 ~ 148 ℃. Melting point 293 ~ 295 ℃ (decomposition). L-Leucine in the presence of hydrocarbons, inorganic acid in aqueous solution and stable performance. Per gram of L-Leucine dissolved in 40ml water and about 100ml acetic acid. Slightly soluble in ethanol, soluble in dilute hydrochloric acid and alkali hydroxide and carbonate solution. L-Leucine is not soluble in ether.

    L-Leucine is an essential amino acid, the body can not synthesize, L-Leucine natural materials found in the spleen, heart, etc., and form of the protein present in a variety of plant and animal tissues, free of corruption out of L-Leucine can be decomposed . This means that the L-Leucine must be obtained through diet or supplements. Containing L-Leucine food including eggs, fish, chicken, lentils, almonds and cashews, and so on. L-Leucine used as nutritional supplements, food additives, generally L-Leucine used for bread, noodle products. E641 amino acid infusion and the preparation of comprehensive amino acid preparations, hypoglycemic agents, plant growth promoters. L-Leucine can be used as spices, improve food flavor.

    References on L-Leucine

    [1]. Wessels AG, Kluge H, Hirche F, Kiowski A, Schutkowski A, Corrent E, Bartelt J, König B, Stangl GI. High Leucine Diets Stimulate Cerebral Branched-Chain Amino Acid Degradation and Modify Serotonin and Ketone Body Concentrations in a Pig Model. PLoS One. 2016 Mar 1;11(3):e0150376.

    [2]. Sakomura NK, Ekmay RD, Mei SJ, Coon CN. Lysine, phenylalanine, arginine, valine, isoleucine, leucine, and threonine maintenance requirements of broiler breeders. Poult Sci. 2015 Nov;94(11):2715-21.

    [3]. Gulão Eda S, de Souza CJ, Andrade CT, Garcia-Rojas EE. Complex coacervates obtained from peptide leucine and gum arabic: formation and characterization. Food Chem. 2016 Mar 1;194:680-6.

    [4]. Columbus DA, Steinhoff-Wagner J, Suryawan A, Nguyen HV, Hernandez-Garcia A, Fiorotto ML, Davis TA. Impact of prolonged leucine supplementation on protein synthesis and lean growth in neonatal pigs. Am J Physiol Endocrinol Metab. 2015 Sep 15;309(6):E601-10.


    Support & FAQs

    1. What's your payment terms?

    T/T or LC.

    2. What's your delivery time?

    Usually we will arrange the shipment in 7 -15 days.

    3. How about the packing?

    Usually we provide the packing as 25 kg / bag or carton. Of course, if you have special requirements on them, we will according to you.

    4. How about the validity of the L-Leucine?

    According to the L-Leucine you ordered.

    5, What is the MOQ of L-Leucine ?

    Different products have different MOQ, for L-Leucine , the MOQ is 1000kg.

    6, What is the price of L-Leucine ?

    Fooding has been corporate with many L-Leucine manufacturers for several years, we can provide you with best price of L-Leucine.

    7, How long shall we wait for your reply?

    We can guarantee to reply your inquiries of L-Leucine in one working days.

    8. What documents you provide?

    Usually, we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificat and Origin certificate. If your markets have any special requirements, let us know.

    9. What is loading port?

    Usually is Shanghai or Qingdao.


    Our Services
    1. Supply high quality products with a reasonable price in additives industry.
    2. Arrange the orders and shipping with cus requests in time, According to the different countries export policy provide complete customs clearance documents.
    3. Provide agile and safe payments.
    4. We can in charge of all if our products have quality problems.
    5. Provide a price trend, ensure the clients can know about  marketing informations in time.
    6. Have offices at Mexico, Clients can get our company information from here, discuss the prices and delivery time face to face.