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feed grade amino acid D- Methionine DL-Methionine |
Poulty feed grade amino acid d methionine 99%
Name: DL methionine/Methionine
Other Names:DL-2-Amino-4-(methylmercapto)butyric acid, Met, Methionine
Grade: feed grade
Standard: FCCIV, AJI, EP4
MF: C5H11NO2S
CAS: 59-51-8
EINECS: 200-432-1
FEMA: 3301
Purity: 99%
Items | EP 4 | FCC | USP |
Appearance | White flake crystal powders | White flake crystal powders | White crystal or crystalline powder |
Assay (on dry matter) | 99%~101% | 98.5%-101.5% | 99.0-101.5% |
Specific rotation | -0.05°- +0.05° | - -- | --- |
Loss on drying | 0.5% Max | 0.5% Max | ≤ 0.3% |
Residue on ignition | 0.1% Max | 0.1% Max | ≤ 0.4% |
Chlorides | 200ppm Max | - -- | ≤ 0.05% |
Sulphates | 200ppm Max | - -- | ≤ 0.03% |
Arsenic | - -- | 1.5 ppm Max | --- |
Heavy metals | 20ppm Max | 20ppm Max | ≤ 0.0015% |
Iron(Fe) | --- | --- | ≤ 0.003% |
Organic volatile impurities | --- | --- | Conforms |
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