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L-Leucine E641-CAS-No.61-90-5
L-Leucine E641-CAS-No.61-90-5
as a white crystal or crystalline powder, is a non-polar amino acid, slightly bitter taste, soluble in water.
L-Leucine E641-CAS-No.61-90-5 as a food additive, nutrition enhancers, widely used in bread, pasta products, spices, E641 can improve food flavor.


  • 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
  • Function:type7
  • Applications:type14


    • 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 E641-CAS-No.61-90-5
L-Leucine-E641-61-90-5 as a white shiny hexahedral crystals or white crystalline powder. E641-61-90-5 slightly bitter taste. Sublimation at 145 ~ 148 ℃. Melting point 293 ~ 295 ℃ (decomposition). E641-61-90-5 in the presence of hydrocarbons, inorganic acid in aqueous solution and stable performance. Per gram of E641-61-90-5 dissolved in 40ml water and about 100ml acetic acid. Slightly soluble in ethanol, soluble in dilute hydrochloric acid and alkali hydroxide and carbonate solution. E641-61-90-5 is not soluble in ether.

E641-61-90-5 is an essential amino acid, the body can not synthesize, E641 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 E641 can be decomposed . This means that the E641 must be obtained through diet or supplements. Containing E641 food including eggs, fish, chicken, lentils, almonds and cashews, and so on. E641-61-90-5 used as nutritional supplements, food additives, generally E641 used for bread, noodle products. E641 amino acid infusion and the preparation of comprehensive amino acid preparations, hypoglycemic agents, plant growth promoters. E641 can be used as spices, improve food flavor.


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