N-Carbobenzyloxy-L-proline Cbz-L-proline CAS:1148-11-4
Product name |
N-Carbobenzyloxy-L-proline |
Alias |
N-cbz-L-proline crystalline; Z-L-Proline; N-Benzyloxycarbonyl-L-proline; Z-Pro-OH; N-CBZ-L-Proline N-Carbobenzyloxy-L-proline; N-Cbz-L-proline; N-Cbz-L-Pro-OH; 1-[(benzyloxy)carbonyl]-L-proline; 1-[(benzyloxy)carbonyl]-D-proline; 1-[(benzyloxy)carbonyl]proline; (2S)-1-[(benzyloxy)carbonyl]pyrrolidine-2-carboxylate; Cbz-L-proline |
CAS NO |
1148-11-4 |
EINECS No. |
214-557-4 |
Molecular formula |
C13H14NO4 |
Molecular weight |
248.2551 |
Structural formula |
|
Product description |
White powdery crystal.Melting point: 75~77℃ 熔点75-77 °C; specific rotation: -60 º (c=2,AcOH); refractive index: -40 °(C=2, EtOH) |
Uses |
In biochemical reagent, in the synthesis of oxytocin, vasopressin and other polypeptides. |
Item |
Standard |
Results |
Appearance |
A white to off-white powder |
Conforms |
differentiate |
To match with standard |
Consistent |
Transmittance |
≥98% |
Conforms |
Specific rotation(On dried basis) |
+33.0°~+35.0° |
+33.75° |
Loss on drying |
≤0.2% |
0.10% |
Chloride |
≤0.02% |
<0.02% |
Ammonium(NH4) |
≤0.02% |
<0.02% |
Iron(Fe) |
≤0.001% |
<0.001% |
Sulfate(So4) |
≤0.02% |
<0.02% |
Other amino acids |
Passed |
Conforms |
Residue on igaition |
≤0.10% |
0.05% |
Heavy metals(Pb) |
≤10ppm |
<10ppm |
PH |
5.4—6.0 |
5.72 |
Assay |
98.5%~101.5% |
99.43% |
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