• L-Asparagine



Asparagine symbol Asn or N is a key α-amino acid that is used in the biosynthesis of proteins. It contains a α-amino group and a α-carboxylic acid group as well as a side chain carboxamide.

Product Name L-Asparagine
CAS No. 70-47-3
Appearance White powder
Purity 99% min L-Asparagine
EINECS No 200-735-9
Storage Keep in a cool, dry, dark location in a tightly sealed container or cylinder.
Shelf Life 24 Months
Items Standards Results
Physical Analysis
Appearance Fine Powder Conforms
Color White Powder Conforms
Odor Characteristic Conforms
Mesh Size 100% through 80% mesh size Conforms
General Analysis
Identification Identical to R.S. sample Conforms
Amino acid ≥98% 98.41%
Extract Solvents Water and Ethanol Conforms
Loss on Drying (g/100g) ≤5.0 3.24%
Ash(g/100g) ≤5.0 2.05%
Chemical Analysis
Pesticides Residue (mg/kg) 0.05 Conforms
Residual Solvent <0.05% Conforms
Residual Radiation Negative Conforms
Lead(Pb) (mg/kg) <3.0 Conforms
Arsenic(As) (mg/kg) <2.0 Conforms
Cadmium(Cd) (mg/kg) <1.0 Conforms
Mercury(Hg) (mg/kg) <0.1 Conforms
Microbiological Analysis
Total Plate Count(cfu/g) ≤1,000 300
Molds and Yeast (cfu/g) ≤100 29
Coliforms (cfu/g) Negative Conforms
Salmonella(/25g) Negative Conforms