|
DL-Methionine
|
| DL-2-Amino-4-( methylthio )butyric Acid |
 |
|
C5H11NO2 S |
Formula wt 149.21 |
|
CAS: [59-51-8] |
| Description: |
|
DL-Methionine occurs as white crystalline platelets or powder. One gram
dissolves in about 30 mL of water. It is soluble in dilute
acids and in solutions of alkali hydroxides. It is very
slightly soluble in alcohol, and practically insoluble in
ether. It is optically inactive. The pH of 1:100 aqueous
solution is between 5.6 and 6.1.
|
| Function Nutrient. |
| REQUIREMENTS |
| Identification The infrared absorption spectrum of the sample
relative maxima at the same wavelengths as those of a typical
spectrum as shown in the section on Infrared Spectra,
using the same test conditions as specified therein. |
| Assay Not less than 98.5% and not more than 101.5% of C5H11NO2S,
calculated on the basis. |
| Lead Not more than 0.5% |
| Loss on drying Not more than 0.5%. |
| Residue on ignition Not more than 0.1% |
| Packaging and Storage Store in
well-closed, light-resistant containers. |
