C4H9NO3
| L-Threonine | CAS NO：72-19-5 |
| Chemical Name | L-Threonine |
| Molecular Structure |
|
| Molecular Formula | C4H9NO3 |
| Molecular Weight | 119.12 |
| Characteristics | White crystalling powder |
| Packing |
25㎏/drum，25㎏/carton |
| Quality Standard | AJI92/USP28/EP5/FCCIV |
Specification
|
Specific rotation[a]D20° |
-27.6°~-29.0° |
|
State of solution |
Clear colorless |
|
(Tranamittance) |
≥98.0% |
|
Chloride(Cl) |
≤0.02% |
|
Ammonium(NH4) |
≤0.02% |
|
Sulfate(SO4) |
≤0.020% |
|
Iron(Fe) |
≤10PPm |
|
Heavy metals(Pb) |
≤10PPm |
|
Arsenic(As2O3) |
≤1PPm |
|
Other amio acids |
Chromatographically not detecatable |
|
Loss on drying |
≤0.10% |
|
Residue on ignition (Sulfated) |
≤0.10% |
|
Assay |
99.0～100.5% |
|
PH |
5.2～6.2 |
