Food Additives, Food Ingredients Supplier - Foodchem

FOODCHEM is the L-Isoleucine supplier and manufacturer, engaged in the export and wholesale of L-Isoleucine for more than 10 years. The MOQ of L-Isoleucine is 500 kgs, if you need only a small amount, please contact the local distributor of L-Isoleucine. Any suggestions and questions about the L-Isoleucine, please send Email to, we will reply within 24 hours.


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L-Isoleucine, CAS# 73-32-5, is a hydrophobic amino acid manufactured through chemical synthesis, available as White crystals or crystalline Powder. L-Isoleucine is an isomer of L-Leucine, widely used as nutritional supplements. It is affirmed by US FDA as GRAS(generally recognized as safe) and widely accepted as safe food additive in many countries. As a professional supplier and manufacturer of food additives, Foodchem International Corporation has been supplying quality L-Isoleucine to customers all over the world for over 10 years. If you have any questions or wish to receive a quote, please feel free to reach us by email: or by phone: +86 21 2206 3075. Our sales person will get back to you in 1 working day.

  • Specification
  • FAQ
  • In-Depth
Appearance White crystals or crystalline Powder
Specific rotation +38.6-+41.5
PH 5.5-7.0
Loss on drying ≤0.3%
Heavy metals(Pb) ≤20ppm
Content 98.5~101.0%
Iron(Fe) ≤20ppm
Arsenic(As2O3) ≤1ppm
Lead ≤10ppm
Other Amino Acids Chromatographically not detectable
Residue on ignition (Sulfated) ≤0.2%
Organic Volatile impurities Meets the requirements of pharmacopoeis

Available Grade of L-Isoleucine

  • Food Grade: L-Isoleucine is widely used as nutritional supplement in food and beverage industries. Foodchem's food grade L-Isoleucine is available as fine powder (>98.5% purity).
  • Quality Control

    At Foodchem International Corporation, we apply strict quality control process to all our products. All L-Isoleucine we provide has been strictly tested under Kosher, Halal, HACCP and ISO standards and proved to be safe for using as food additive.

    Storage&Handling Precaution

    Storage: L-Isoleucine should be Kept in dry, cool, and shaded place with original packaging, avoid moisture, store at room temperature.
    Handling Precaution: Handling of L-Isoleucine should only be performed by personnel trained and familiar with handling of organic chemicals. Avoid skin and eye contact and breathing in dust. Avoid handling which leads to dust formation.

    Application and Uses of L-Isoleucine

    L-Isoleucine is a hydrophobic amino acid widely used as nutritional supplements in food and beverage industries. As a nutritional supplements, L-Isoleucine can be used in a wide variety of industries including: food production, beverage, pharmaceutical, cosmetics, and various other industries.
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