Complaint
L(+)-Lysine monohydrate for Food additive cas 39665-12-8
| L(+)-Lysine monohydrate Basic information | |
| Product Name: | L(+)-Lysine monohydrate |
| CAS: | 39665-12-8 |
| MF: | C6H16N2O3 |
| MW: | 164.2 |
| EINECS: | 609-735-7 |
| L(+)-Lysine monohydrate Chemical Properties | |
| Melting point | 212-214 °C |
| alpha | 26.25 º (c=8, 6N HCl) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | H2O: soluble |
| form | Crystalline Powder or Crystals |
| color | White to yellow |
| optical activity | [α]20/D +22.5±1°, c = 2% in 6 M HCl |
| Water Solubility | >1500 g/L (20 ºC) |
| Sensitive | Air Sensitive & Hygroscopic |
| Merck | 145,636 |
| BRN | 1722531 |
| CAS DataBase Reference | 39665-12-8(CAS DataBase Reference) |
Item | Standard(%) | Result |
Appearance | White crystals or White crystalline Powder; | White crystalline Powder |
Specific Rotation | + 23.5°~ + 26.5° | + 25.94° |
PH | 9.0~10.5 | 9.79 |
Chloride ( Cl ) | ≤300ppm | <300ppm |
Ammonium (NH4) | ≤200ppm | <200ppm |
Sulfate(SO4) | ≤200ppm | <200ppm |
Iron(Fe) | ≤10ppm | <10ppm |
Heavy metals (Pb) | ≤10ppm | <10ppm |
Loss on drying | ≤11.8% | 9.95% |
Assay | 98.5%~101.5% | 98.90% |
Other amino acids(TLC) | ≤0.5% | Pass |
Residue on ignition | ≤0.30% | 0.03% |
Clarity of solution(10 % solution in water) | clear or not be more intensive than reference solution I | conformed |
Colour of solution(10 % solution in water) | colourless or not be more intensive than standard solution Y7 or GY7 | colourless |
Conclusion | The results above meet the standard of enterprise. | |
