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L-Threonine
An essential amino acid in human. It is widely used as an ingredient in infusion and infant formula.
| Cas.No | 72-19-5 |
| Assay | 99.0-101.0% |
| Specification | White crystals or crystalline powder, odorless or slightly characteristic odor, slightly sweet taste |
| Applications | Infusion |
| Packaging | 25kg&50kg |
| Pharmacopeia | JP,USP,EP,FCC |
| STORAGE | Controlled room temperature in tight container |
SPECIFICATION AND 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% |
· * The endotoxin-certified grade will be supplied on request.
· ** FCC grade (Lead : Not More Than 5 mg/kg) will be supplied on request.
· This product meets requirements of residual solvents listed in the current JP, USP and EP.
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