L-Leucine
CAS No.: 61-90-5
Product Name: L-Leucine
CAS#61-90-5
Spec: Fermentation,USP24
Package: 25kg/drum, 9mt/20`FCL on pallets
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
CAS#61-90-5
Spec: Fermentation,USP24
Package: 25kg/drum, 9mt/20`FCL on pallets
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
Description
Spec of L-Leucine :
| Items | Specification | Results |
| Description | White Crystals or crystalline powder | Conforms |
| Identification(IR) | Concordant with the reference spectrum | Conforms |
| Assay ,% | 98.5~ 101.5 | 99.9 |
| Specific optical rotation | +14.9deg~+17.3deg | +15.8deg |
| pH | 5.5～7.0 | 6.08 |
| Residue on ignition | ≤0.30% | 0. 13% |
| Loss on drying | ≤0.30% | 0. 11% |
| Heavy metals | ≤10ppm | <10ppm |
| Lead(Pb) | ≤0.5ppm | <0.5ppm |
| Arsenic(As2o3) | ≤1.0ppm | <1.0ppm |
| Cadmium（Cd） | ≤1.0ppm | <1.0ppm |
| Mercury(Hg) | ≤0. 1ppm | <0. 1ppm |
| Chloride | ≤0.05% | <0.05% |
| Sulfate(SO4-2) | ≤0.03% | <0.03% |
| Iron(Fe) | ≤0.003% | <0.003% |
| Total plate count | ≤5000cfu/g | <1000cfu/g |
| Yeast&Mould | ≤100cfu/g | <100cfu/g |
| Coliforms Group | ≤3mpn/g | Conforms |
| Staphylococcus aureus | ≤3mpn/g | Conforms |
| Salmonella | Negative | Negative |
