L-Threonine
Chemical
Name: Synonyms:
2-Amino-3-hydroxybutyric acid; (2S,3R)-threonine; (2S,3R)-(-)-Threonine;
L-2-Amino-3-hydroxybutyric acid; L-(-)-threonine; L-Threonine; T; Thr;
Threonine;
Molecular Formula: C4H9NO3
Molecular Weight: 119.12
Cas No: [72-19-5]
Characteristics: White crystals or crystalline powder
Quality Standards: USP24.
Descripton
| Item | Limit |
| Description | White crystals or crystalline powder |
| Identification | Infrared absorption |
| Specific rotation [a]D25 ° | -26.7 °- -29.1° |
| PH | 5.0-6.5 |
| Loss on drying | ≤ 0.2% |
| Residue on ignition | ≤ 0.4% |
| Chloride | ≤ 0.05% |
| Sulfate | ≤ 0.03% |
| Iron | ≤ 0.003% |
| Heavy metals | ≤ 0.0015% |
| Organic volatile impurities | Meets the requirements |
| Assay | 98.5-101.5% |
Packaging and Storage: In 25kgs f iber drum double
polyethylene bags inside; Preserve in well-closed containers, at
controlled room temperature.
Recommended limit: 1 year.
