D-Alanine
Chemical name: 2-Aminopropanoic acid
CAS No.: 338-69-2
Molecular Formula: C3H7NO2
Molecular Structure:
Description:Alanine (abbreviated as Ala or A) is an α-amino acid with the chemical formula CH3CH(NH2)COOH. The L-isomer is one of the 20 amino acids encoded by the genetic code. Its codons are GCU, GCC, GCA, and GCG. It is classified as a nonpolar amino acid. L-Alanine is second only to leucine in rate of occurrence, accounting for 7.8% of the primary structure in a sample of 1,150 proteins. D-Alanine occurs in bacterial cell walls and in some peptide antibiotics.
Specification:
Test items | Specifications |
Appearance | White crystals or powder |
Content(%) | 98.0-101.0 |
[α]D20Specific Rotation | -14.3°∽+-15.3° |
Transmittance(%) | ≥95.0 |
Chloride[CL-](%) | ≤0.10 |
Heavy metals(Pb) | ≤10ppm |
Arsenic (As) | ≤2ppm |
Loss on drying(%) | ≤0.20 |
Residue on ignition% | 0.20 |
Packing & Storage:
