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L-Valine
CAS No.: 72-18-4
Molecular Formula: C5H11NO2 Molecular Weight: 117.15
Structural Formula:
Properties:
The density of L-Valine is1.23 and the melting point is 315℃. The alpha of L-Valine is 28 º (c=8, 6N HCl)l and the water solubility is 85 g/L (20 ºC).
Valine (abbreviated as Val or V) is an α-amino acid with the chemical formula HO2CCH(NH2)CH(CH3)2. L-Valine is one of 20 proteinogenic amino acids. Its codons are GUU, GUC, GUA, and GUG. This essential amino acid is classified as non-polar. Human dietary sources include cottage cheese, fish, poultry, peanuts, sesame seeds, and lentils.
Along with Leucine and Isoleucine, Valine is a branched-chain amino acid. Valine is named after the plant valerian. In sickle-cell disease, Valine substitutes for the Hydrophilic Amino Acid Glutamic Acid in hemoglobin. Because Valine is hydrophobic, the hemoglobin does not fold correctly.
Specification:
| Item | Index |
| Assay | 98.5%min. |
| Appearance | White crystals or crystalline powder |
| Specific Rotation | +26.5°～+29.0° |
| T430 | 98%min. |
| PH Value | 5.5-6.5 |
| Chloride（as Cl） | ≤0.02% |
| Sulfate（as SO4） | ≤0.03% |
| NH4 | ≤0.02% |
| Loss on Drying | ≤0.20% |
| Residue on Ignition | ≤0.10% |
| Other Amino Acid | ≤0.5% |
| Heavy Metal (as Pb) | ≤10ppm |
| Arsenic (as AS2O3) | ≤1ppm |
| Iron (as Fe) | ≤10ppm |
Usage:
L-Valine is used as the main nutritional supplements, and the main ingredients of amino acid infusion and integrated amino acid preparation.
Packing and Storage:
L-Valine is packed in 25kg fiber drums. L-Valine should be stored in cool and air place.
Keywords:
L-Valine, L-2-Amino-3-Methylbutyric Acid; 2-Aminoisovaleric Acid