D(-)-2-Aminobutyric acid -(-)-2-Aminobutyric acid 2623-91-8
Product name |
D(-)-2-Aminobutyric acid |
Alias |
-(-)-2-Aminobutyric acid; D-alpha-Amino-n-butyric Acid; (R)-(-)-2-Aminobutyric acid; D-2-Aminobutyric acid; R-AMINOBUTYRIC ACID; (R)-(-)-2-AMINO-N-BUTYRIC ACID; (R) 2-AMINOBUTYRIC ACID; D-2-AMINO-BUTANOIC ACID; D-(-)-2-AMINOBUTYRIC ACID; D-(-)-2-AMINO-N-BUTYRIC ACID; (R)-2-Aminobutyric acid; H-D-Abu-OH |
CAS NO |
2623-91-8 |
EINECS No. |
220-084-4 |
Molecular formula |
C4H9NO2 |
Molecular weight |
103.12 |
Structural formula |
|
Product description |
Melting point: >300 °C(lit.); specific rotation -21.2 º(c=2, 6N HCl) |
Uses |
As pharmaceutical intermediate |
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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