Factory Supply High Quality 99% D-Proline Powder CAS 344-25-2
D-Proline CAS 344-25-2 Supplier in China
Specification
| Item | Inspection Standard |
| Appearance | White crystals or crystalline powder |
| [α]D20Specific Rotation | +83.5°~+86.5° |
| Chloride(Cl) | ≤0.020% |
| pH | 5.9~6.9 |
| Ammonium(NH4) | ≤0.02% |
| Iron(Fe) | ≤10ppm |
| Heavy metals(Pb) | ≤10ppm |
| Arsenic(As2O3) | ≤2ppm |
| Other Amino acids | Meets the requirements |
| Loss on drying | ≤0.50% |
| Residue on ignition | ≤0.10% |
| Assay | 98.5~101.0% |
Usage:
Used in the synthesis of (R)-(+)-N-Boc-Pipecolic Acid, (S)-(-)-Coniine, (S)-(+)-Pelletierine, (+)-.beta.-Conhydrine, and (S)-(-)-Ropivacaine and formal synthesis of (-)-Lasubine II and (+)-Cermizine C.
China
