|
L-Threonine
CAS No.:72-19-5
Description: White crystals or crystalline powder
| Specifications |
| Item |
Limit |
| Description |
White crystals or crystalline powder |
| Identification |
Infrared absorption |
| Specific rotation [a]D25 º |
-26.7 º- -29.1º |
| 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% |
Packing: In 25kgs f iber drum double polyethylene bags inside; Preserve in well-closed containers, at controlled room temperature.
|
back
top