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 |
| MF | C4H8N2O3 |
| 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 |