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N-(tert-Butoxy carbonyl)-L-valine (S)-2-(Boc-Amino)-3-Methylbutyric Acid CAS:13734-41-3
Product name | N-(tert-Butoxy carbonyl)-L-valine |
Alias | Boc-l-Val-OH; N-Boc-L-Valine; Boc-L-Valine; Boc-Val-OH; N-(tert-butoxycarbonyl)-L-valine; N-(tert-butoxycarbonyl)valine; N-(tert-butoxycarbonyl)-D-valine; (2S)-2-[(tert-butoxycarbonyl)amino]-3-methylbutanoate; N-(tert-Butoxycarbonyl)-L-valine; (S)-2-(Boc-Amino)-3-Methylbutyric Acid |
CAS NO | 13734-41-3 |
EINECS No. | 237-307-6 |
Molecular formula | C10H18NO4 |
Molecular weight | 216.2548 |
Structural formula | |
Product description | White flaky crystal or crystalline powder; soluble in acetic acid and ethyl acetate, DMF, insoluble in petroleum ether and water; mp is 80℃. melting point: 77-80 °C(lit.); specific rotation: -6.3 º (c=1,CH3COOH); refractive index: -6.5 ° (C=1, AcOH) ; solubility: insoluble |
Uses | The product can be used in polypeptide synthesis, or used as amino acid protective monomer. |
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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