L-proline
Chemical name: Pyrrolidine-2-carboxylic acid
CAS No.: 147-85-3
Molecular Formula: C5H9NO2
Molecular Structure:
Description:Proline (abbreviated as Pro or P) is an α-amino acid, one of the twenty DNA-encoded amino acids. Its codons are CCU, CCC, CCA, and CCG. It is not an essential amino acid, which means that the human body can synthesize it. It is unique among the 20 protein-forming amino acids in that the amine nitrogen is bound to not one but two alkyl groups, thus making it a secondary amine. The more common L form has S stereochemistry
Specification:
Test items | Specifications |
Appearance | White crystals or crystalline powder |
Assay % | 98.5~101.5% |
Specific rotation[a]20D | -84.3~-86.3° |
Residue on ignition | ≤0.40% |
Loss on drying | ≤0.40% |
Chloride（Cl） | ≤0.05% |
Sulfate (SO4) | ≤0.03% |
Heavy metals (Pb) ppm | ≤15ppm |
Iron(Fe) | ≤30ppm |
Chromatographic purity | Individual impurity ≤0.5% Total impurities ≤2.0% |
Packing & Storage:
