Introduction
English name DL-Methionine
English alias DL-2-Amino-4-(methylthio)butyric acid; DL-Methoionine; 3-Methyl Amino Propionitrile; (+/-)-2-Amino-4-(methylthio)butyric acid~H-DL-Met- OH
Formula C5H11NO2S; CH3SCH2CH2CH(NH2)COOH
Molecular Weight 149.21
CAS No.59-51-8
Appearance: white flaky crystal or powder;
Solution clarity: colorless clarification;
Content (dry basis): 99.4%;
PH value: 5.9 (1% aqueous solution);
Heavy metal (in terms of Pb): ≤ 0.001%;
Heating loss: ≤0.07%;
Burning residue: ≤0.06%;
Chloride (in terms of Cl): ≤ 0.02%;
Cobalt sulfate (calculated as SO4): ≤0.02%;
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Function
1. Dl Methionine can be used as nutional supplement. DL-methionine has the same effect with L-methionine, but DL-methionine is cheaper.
2. Dl Methionine can be formulated as a flavoring agent.
3. Dl Methionine has a protective role of the liver. Methionine has effects of anti cirrhosis, fatty liver, and a variety of acute, chronic, viral, jaundice liver.
4. Dl Methionine has a myocardial protective effect.
5. Dl Methionine has an antidepressant effect.
6. Dl Methionine has a blood pressure lowering effect.
7. Dl Methionine has an antivirus poison eradicates effect.
8. Dl Methionine is the feed nutrition enhancer.Livestock and poultry lack of methionine, can lead to stunted growth, weight loss, liver and kidney function abate, muscle atrophy, fur, metamorphism and so on.Add 1 kg methionine, feed of 50 kg fish meal nutrition value.Feed in the general content of 0, 05 % to 0.2%.
Specification
|
Appearance |
White to yellowish powder |
|
Purity |
98% min |
|
Loss on drying |
< 0.2% |
|
Heavy metals (as Pb) |
< 10 PPM |
|
Ignition residue |
< 0.1% |
|
Ph |
5.6 ~ 6.1 (1% soln. 25 ° C) |
|
Transmittance > 95% |
> 95% |
|
CL |
< 200 PPM |
|
SO4 |
< 200 PPM |
|
NH4 |
< 200 PPM |
|
Fe |
< 10 PPM |
|
Other amino acids |
< 0.2% (TLC) |
|
Water |
0.5% or less |
|
Arsenic Arsenic (As) |
3 PPM or less |
|
Cadmium Cadmium (Cd) |
1 PPM or less |
|
Mercury Mercury (Hg) |
1 PPM or less |
|
Lead Lead (Pb) |
10 PPM or less |