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L-METHIONINE For Biochemistry
| Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
|---|---|---|---|---|---|---|---|
| SC0612 | For Biochemistry | 99% | 63-68-3 | C5H11NO2S | 149.21 | 2930.4000 | 60 Months |
Packings
| 25 g,100 g,500 g |
Physical Properties
| Physical state at 20 °C | Solid |
| Colour | White powder |
| Odour | Slight odour |
| pH value | 5.6 - 6.1 |
| Melting point/ Freezing point [°C] | 284°C |
| Decomposition point [°C] | 276°C |
| Flash point [°C] | 284°C |
| Solubility in water [% weight] | 56.6 g/L @ 25°C |
Specifications
| Appearance | White powder |
| Assay (by HClO4 titration) | Min 99% |
| Specific optical rotation ([α]20/D) | +22.5 to + 24 deg |
| pH (2.5% solution) | 5.5 - 6.5 |
| Loss on drying (at 105°C) | Max 0.3% |
| Residue on ignition (as SO4) | Max 0.1% |
| Chloride (Cl) | Max 0.02% |
| Sulphate (SO4) | Max 0.03% |
| Iron (Fe) | Max 0.001% |
| Heavy metal (as Pb) | Max 0.001% |
| Ammonium (NH4) | Max 0.01% |
| Foreign amino acids | Max 0.3% |
| Other ninhydrin positive substances (as glycine) | Max 0.1% |
Safety Information and Hazard Symbols
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Revision Date : 29-Apr-2013
Certificate of Analysis (COA's)
To download COA please enter the batch number below