L-methionine Powder

Basic Information

• CAS Number: 63-68-3
• Chinese Name: L-Methionine
• English Name: L-Methionine
• Molecular Formula: C5H11NO2S
• Molecular Weight: 149.211

Physical and Chemical Properties

• Density: 1.2±0.1 g/cm³
• Melting Point: 280-284°C
• Boiling Point: 306.9±37.0 °C at 760 mmHg
• Flash Point: 139.4±26.5 °C
• Vapor Pressure: 0.0±1.4 mmHg at 25°C
• Solubility: Soluble in 1M HCl (50 mg/mL) and water (56.6 mg/mL at 25°C). Insoluble in ethanol, acetone, and ether.
• Appearance: White crystalline powder

Biological Activity and Functions

• Essential Amino Acid: L-Methionine is an essential amino acid for human development and an important raw material for protein synthesis.
• Liver Protectant: L-Methionine is a strong liver detoxifier and has liver-protecting functions.

Applications

• Food Industry: L-Methionine can be used as a flavor enhancer to improve the taste of food.
• Pharmaceutical Field: L-Methionine has widespread applications in the pharmaceutical industry, such as for the diagnosis and treatment of diseases like polio.
• Other Fields: L-Methionine is also widely used in industries such as biology, chemistry, leather making, and textiles.

Storage Conditions

• Sealed and Protected from Light: It should be stored in a cool, dry, and light-protected environment.
• Packaging: It should be packaged in wooden barrels lined with plastic bags or kraft paper bags to avoid contact with oxidizing agents.

Safety

• Non-toxic: L-Methionine is non-toxic in itself, but excessive intake may cause symptoms such as vomiting and loss of appetite.
• Safe Handling: Appropriate protective measures should be taken during production and handling to avoid inhalation or contact with skin and eyes.