Product Name:D-Proline
CAS: 344-25-2
MF: C5H9NO2
white crystal or crystalline powder
The detailed specifications are as below:
| Test Items | Specifications |
| Appearance | White to off-white powder |
| Solubility | Colorless & clear (c=5, Water) |
| Specific Rotation [20/D] | +83.5 to +86.5 Degree (c=4, Water) |
| Loss on Drying | Not more than 0.40% |
| Residue on Ignition (Sulfate) | Not more than 0.1% |
| Chloride (Cl) | Not more than 0.03% |
| Sulfate (SO4) | Not more than 0.03% |
| Heavy Metals (Pb) | Not more than 10ppm |
| Iron (Fe) | Not more than 10ppm |
| Ammonium Salts (NH4) | Not more than 0.02% |
| Arsenic (As) | Not more than 1ppm |
| Other Amino Acid | Not detected by TLC |
| Assay | 98.5% to 101.0% |
| L-Enantiomer | Not more than 0.5% |