L-Leucine
An essential amino acid in human. Known as BCAAs (branched chained amino acids) which are the main components of muscle protein. It is widely used as an ingredient in infusion and infant formula.
| Cas.No | 61-90-5 |
| Assay | 99.0-101.0% |
| Specification | White crystals or crystalline powder, odorless or slightly characteristic odor, slightly bitter taste |
| Applications | Infusion, Cell culture media, Dietary Supplement |
| 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 | 5.5～6.5 |
| Specific rotation[α]20D | +14.9～+16.0° |
| Specific rotation[α]25D | +14.9～+17.3° |
| 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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