L-Threonine CAS:72-19-5 98.5%～101.0%
|
Cas.No |
72-19-5 |
|
Assay |
99.0-101.0% |
|
Description |
White crystals or crystalline powder, odorless or slightly characteristic odor, slightly sweet taste |
|
Uses |
Infusion |
|
Packaging |
25kg&50kg |
|
Pharmacopeia |
JP,USP,EP,FCC |
|
STORAGE |
Controlled room temperature in tight container |
SPECIFICATIONAND PROCEDURE
State of solution
(Transmittance) |
Not Less Than 98.0% |
|
pH |
5.0～6.5 |
|
Specific rotation[α]20D |
-27.6～-29.0° |
|
Specific rotation[α]25D |
-26.7～-29.1° |
|
Ammonium (NH4) |
Not More Than 0.020% |
|
Chloride (Cl) |
Not More Than 0.020% |
|
Sulfate (SO4) |
Not More Than 0.020% |
|
Iron (Fe) |
Not More Than 10 ppm |
|
Heavy metals (Pb)** |
Not More Than 10 ppm |
|
Arsenic (As2O3) |
Not More Than 1 ppm |
|
Loss on drying |
Not More Than 0.20% |
|
Residue on ignition |
Not More Than 0.10% |
|
Related substances |
Not More Than 0.5% |
|
Endotoxin* |
Less Than 6.0 EU/g |
|
Assay (dry basis) |
99.0～101.0% |
An essential amino acid in human. It is widely used as an ingredient in infusion and infant formula.
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