DL-alanine
Other names:2-Aminopropanoic acid
CAS No.: 302-72-7
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:
Item | Specifications |
Appearance | White crystalline powder |
Assay (C3H7NO2),% | 98.5～101.0 |
Transmittance, min | 98.0 |
PH value (5% in water) | 5.5～7.0 |
Heavy metals (as Pb),% max | 0.002 |
Loss on drying,% max | 0.2 |
Residue on ignition（as sulphate ash）,% max | 0.1 |
Chloride(as Cl),% max | 0.02 |
Sulphate(as SO4),% max | 0.02 |
Arsenic(as As),% max | 0.0001 |
Ammonium (as NH4) ,% max | 0.02 |
Iron,% max | 0.002 |
Packing & Storage:
