L - Glutamic Acid

• Basic Information
  • Chemical Name: L - Glutamic acid; (2S)-2 - amino - 5 - oxopentanoic acid
  • CAS Number: 56 - 86 - 0
  • Molecular Formula: C5​H9​NO4​
  • Molecular Weight: 147.13
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• Physical and Chemical Properties
  • Appearance: White or almost white crystalline powder
  • Melting Point: 225 - 227 °C (with decomposition)
  • Solubility: Sparingly soluble in water (about 8.5 g/L at 25 °C), soluble in hot water. Insoluble in et/hanol, e/ther and ac/etone. Soluble in dilute acids and alkalis.
  • Specific Rotation:  [α]D20​  = +31.5° to +32.5° 
  • pH Value: 3.0 - 3.5 (10 g/L aqueous solution)
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• Quality Specifications
  • Purity: (Dry basis) Usually ≥ 99.0%
  • Loss on Drying: Max. 0.2%
  • Residue on Ignition: Max. 0.1%
  • Heavy Metals: Max. 10 ppm
  • Arsenic: Max. 2 ppm
  • Related Substances: Individual impurity max. 0.5%, total impurities max. 1.0%
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• Uses
  • Food Industry: Widely used as a flavor enhancer, especially in the form of its sodium salt (monosodium glutamate, MSG). It can enhance the umami taste of food. Also used as a nutritional supplement to improve the protein quality of food.
  • Pharmaceutical Industry: Used in the preparation of amino acid infusions and nutritional supplements. It is also involved in the synthesis of some drugs and has certain applications in the treatment of liver diseases and neurological disorders.
  • Cosmetic Industry: Can be used in some skin - care products, believed to have effects on skin moisturization and metabolism.
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• Storage and Handling
  • Storage: Store in a cool, dry, well - ventilated place, protected from light. Keep the container tightly closed to prevent moisture absorption.
  • Handling: Wear appropriate protective equipment, such as gloves and goggles, to avoid direct contact with skin and eyes. In case of contact, rinse immediately with plenty of water.
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• Safety Information
  • Hazard Statements: Generally regarded as safe when used in appropriate amounts. However, excessive intake may cause some discomfort. Direct contact with skin and eyes may cause irritation.
  • Precautionary Statements: Avoid inhalation of dust. In case of accidental ingestion, seek medical attention if symptoms occur. Keep out of reach of children.

Company Introduction: East Chemsources Limited was established in 2008, is a professional company engaged in the development of chemical products. In the past of 15 years，through continuous technological innovation and the use of talent introduction advantages, we have achieved rapid development, and has become an international diversified modern chemical enterprise. At present, our products have been exported to more than 80 countries,including food additives, medical raw materials, chemical products and personal care.

Since the establishment of the company, always adhere to the credibility first, quality first enterprise creed. Our company is committed to creating a customer-centric, customer-demand-oriented, customer value creation and achievement of customer dreams for the purpose of the service concept, with a broad vision and broad mind, committed to creating good benefits and market operation, to build corporate brand.