L-Tyrosine
CAS No.: 60-18-4
Product Name:L-Tyrosine
CAS#60-18-4
Spec: USP39
Package: 25kg/bag
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
CAS#60-18-4
Spec: USP39
Package: 25kg/bag
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
Description
Spec of L-Tyrosine :
| Items | Specification | Results |
| Appearance | White crystals or crystalline powder | White crystalline powder |
| Identification | As per USP 39 | Conforms |
| Assay | 98.5%～101.5% | 99.8% |
| Specific rotation[a]p2 | -9.8°~-11.2° | -10.1° |
| Chlorides | ≤400ppm | <400ppm |
| Sulfates | ≤400ppm | <400ppm |
| Iron | ≤30ppm | <15ppm |
| Lead | <3ppm | <3ppm |
| Cadmium | <1ppm | <1ppm |
| Mercury | <0.1ppm | <0.1ppm |
| Heavy metals | ≤15ppm | <15ppm |
| Arsenic | ≤1.5ppm | <1.5ppm |
| Loss on drying | ≤0.30% | 0.12% |
| Residue on ignition | ≤0.40% | 0.05% |
| Single impurity | ≤0.50% | <0.5% |
| Total impurities | ≤2.0% | <1.0% |
| Total plate count | ≤1000cfu/g | <1000cfu/g |
| Yeast&Mould | ≤100cfu/g | <100cfu/g |
| Coliforms | In 25 g n.d. | Conforms |
| Salmonella | In 25 g n.d. | Conforms |
| Staphylococcus aureus | In 25 g n.d. | Conforms |
| Escherichia coli | Negative | Conforms |
