English name: L-Asparagine; (S) -2-Aminosuccinic acid 4-amide; L-Aspartic acid 4-amide; alpha-Aminosuccinamic acid; 2-Amino-3-carbamoylpropanoic acid
Other names: L-asparticin; 2-amino-3-carbamoylpropionic acid; L-aspartic acid; L-amide aspartic acid; L-asparagine; L-2-aminosuccinic acid amide
CAS number: 70-47-3
C4H8N2O3 = 132.12
Level: BR
Content: ≥99.0%
PH: 4.4 ～ 6.4
Specific rotation: +34.2 ~ + 36.5 ° (C = 10,6N HC1)
Chloride: ≤0.02%
Ammonium salt: ≤0.10%
Sulfate: ≤0.02%
Heavy metals: ≤10ppm
Arsenic salt: ≤1ppm
Iron salt: ≤10ppm
Loss on drying: 11.5 ～ 12.5%
Properties: white crystal or crystalline powder, odorless. Soluble in acid and alkali solution, soluble in 50 minutes of water, insoluble in ethanol, ether, methanol and benzene. The neutral and alkaline solutions are left-handed and the acidic are right-handed. Density: 1.543. Melting point: 234-235 ℃
Uses: biochemical research. Microbial culture. Peptide synthesis. Measure transaminase substrate. Tuberculosis culture. Biological medium preparation and storage: RT
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