Product Name: L-Threonine
CAS No.: 72-19-5
Molecular Formula: C4H9NO3
Standarad: USP24, FCCIV, AJI97 and etc.
Package: 25kg/drum
Application: (1)important nutrition intensifier
(2)the ingredient of compound amino acid transfusion
(3)the material of half amide
(4)used in feed stuff. it is essential for human body,
it can be used as nutrition intensifier,pharm-grade
products can be used in compound amino acid
transfusion and amino acid preparation.
Specification
|
Item |
Specification | ||
|
USP24 |
FCCIV |
AJI97 | |
|
Appearance |
White crystals or crystalline powder | ||
|
Assay, %(on dried basis) |
98.5~101.5 |
98.5~101.5 |
98.5~101.0 |
|
Specific optical rotation |
-26.7º~ -29.1º |
-26.5º~ -29.0º |
-27.6º~ -29.0º |
|
Transmittance |
- - - |
- - - |
≥98.0 |
|
pH Value |
5.0~6.5 |
- - - |
5.2~6.2 |
|
Loss on drying,% |
≤0.2 |
≤0.3 |
≤0.2 |
|
Heavy metals (as Pb),% |
≤0.0015 |
≤0.002 |
≤0.001 |
|
Residue on ignition,% |
≤0.4 |
≤0.1 |
≤0.1 |
|
Chloride (as Cl),% |
≤0.05 |
- - - |
≤0.02 |
|
Sulfate (as SO4),% |
≤0.03 |
- - - |
≤0.02 |
|
Ammonium (as NH4),% |
- - - |
- - - |
≤0.02 |
|
Arsenic (as As),% |
≤0.00015 |
≤0.00015 |
≤0.0001 |
|
Iron,% |
≤0.003 |
- - - |
≤0.001 |
|
Other amino acids |
- - - |
- - - |
Not detd. |
|
Organic volatile impurities |
Meets the requirement |
- - - |
Meets the requirement |