L-lsoleucine Powder

I. Basic Information

• CAS Number: 73-32-5
• English Name: L-Isoleucine
• Chinese Name: L-异亮氨酸
• Molecular Formula: C6H13NO2
• Molecular Weight: 131.17

II. Physical Properties

• Melting Point: 168-170°C (references 2 and 5)
• Boiling Point: 225.8±23.0°C (Predicted) (reference 1)
• Density: 1.0±0.1 g/cm³ or 1.2930 (estimate) (references 2 and 1)
• Solubility: 41.2 g/L (50 ºC) (references 1 and 5)
• Form: Odorless white solid (reference 2)
• Optical Rotation: [α]20/D +41.0±1°, c = 5% in 6 M HCl (reference 1)
• Refractive Index: 1.463 (reference 2)

III. Chemical Properties

• Acid Dissociation Constant (pKa): 2.32, 9.76 (at 25°C) (reference 1)
• Flash Point: 168-170°C or 90.3±22.6°C (references 1 and 2)

IV. Biological Activity and Uses

• L-Isoleucine is one of the twenty protein amino acids and is an essential amino acid (references 2 and 3).
• It serves as a raw material for synthesizing human hormones and enzymes, promoting protein synthesis and inhibiting its breakdown (reference 3).
• It is mainly used in amino acid injection solutions, food additives, etc. (reference 3).
• Store in a brown glass bottle in a cool, dry place away from light (reference 2).

V. Other Information

• L-Isoleucine has a slightly bitter taste, is odorless, slightly soluble in water, difficult to dissolve in ethanol, and almost insoluble in other organic solvents (reference 3).
• Its solubility in water increases with rising temperature (reference 3).

In summary, L-Isoleucine, as an important essential amino acid, has extensive applications in human metabolism, nutritional supplements, and the pharmaceutical and food industries.