L-leucine
Chemical name:2-Amino-4-methylpentanoic acid
CAS No.: 61-90-5
Molecular Formula: C6H13NO2
Molecular Structure:
Description:Leucine (abbreviated as Leu or L) is a branched-chain α-amino acid with the chemical formula HO2CCH(NH2)CH2CH(CH3)2. Leucine is classified as a hydrophobic amino acid due to its aliphatic isobutyl side chain. It is encoded by six codons (UUA, UCG, CUU, CUC, CUA, and CUG) and is a major component of the subunits in ferritin, astacin and other 'buffer' proteins. Leucine is an essential amino acid, meaning that the human body cannot synthesize it, and it therefore must be ingested.
Specification:
Test items | Specifications |
Appearance | White crystals or crystalline powder |
Specific rotation | +14.9~+16.0° |
State of solution (Transmittance) | ≥98.0% |
Chloride(Cl) | ≤0.020% |
Ammonium(NH4) | ≤0.020% |
Sulfate(SO4) | ≤0.020% |
Iron(Fe) | ≤10ppm |
Heavy metals(Pb) | ≤10ppm |
Arsenic(As2O3) | ≤1ppm |
Other Amino Acids | Chromatographically not detectable |
Loss on drying | ≤0.20% |
Residue on ignition (Sulfated) | ≤0.10% |
Assay | 99.0~100.5% |
PH | 5.5~6.5 |
Packing & Storage:
