L-valine
Chemical name: 2-amino-3-methylbutanoic acid
CAS No.: 72-18-4
Molecular Formula: C5H11NO2
Molecular Structure:
Description：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 nonpolar. 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. It 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 is prone to abnormal aggregation.
Specification:
Test items | Specifications |
Identification | Infrared absorption |
Appearance | White crystals or crystalline powder |
Specific rotation | +26.7~+29.0° |
PH | 5.5~7.0 |
Loss on drying | ≤0.30% |
Residue on ignition | ≤0.10% |
Chloride | ≤0.05% |
Sulfate | ≤0.03% |
Iron | ≤30ppm |
Heavy metals | ≤10ppm |
Arsenic | ≤1.5ppm |
Organic volatile impurities | Meet requirement |
Assay | 98.5~101.5% |
Packing & Storage:
