DL-METHIONINE 99% FOR BIOCHEMISTRY
(±)-2-Amino-4-(methylmercapto)butyric acid, also known as DL-2-Amino-4-(methylthio)butanoic acid, is a reagent that conforms to BP standards.
| Product Code | B-01697 | BRAND | Bio-Chem |
|---|---|---|---|
| Grade | FOR BIOCHEMISTRY | CAS No | 59-51-8 |
| Molecular Formula | C5H11NO2S | Molecular Weight | 149.21 |
| H.S.Code | 2930.40000 | Shelf Life | 60 Months |
| Purity | 99% |
Physical Properties
| Physical state at 20 °C | Solid | Colour | White granular |
|---|---|---|---|
| Melting point/ Freezing point [°C] | 280 °C | Boiling point [°C] | 186 °C |
| Density [g/cm3] | 1.34 °C | Solubility in water [% weight] | Soluble in water |
Packaging
Specification
| Appearance | White to almost white, crystalline powder or small flakes, melt at 270°C |
| Assay (potentiometric; on anhydrous basis) | 99.0-101.0% |
| Solubility | Sparingly soluble in water, very slightly soluble in alcohol. It dissolves in dilute acids and in dilute solutions of the alkali hydroxides |
| Identifications | To comply BP test |
| Appearance of solution | To comply BP test |
| Loss on drying (at 105°C; 3 hrs) | Max 0.5% |
| pH (2% solution in water) | 5.4 to 6.1 |
| Chlorides | Max 0.02% |
| Sulphates | Max 0.02% |
| Heavy metal (as Pb) | Max 0.002% |
| Sulphated ash | Max 0.1% |
| Related Substances ( by TLC) | To comply BP test |
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338