L-METHIONINE For Biochemistry |
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HomeLaboratory ChemicalsAmino Acids & Derivatives |
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SYNONYMS : (S)-2-AMINO-4-(METHYLMERCAPTO)BUTYRIC ACID; L-2-AMINO-4-(METHYLTHIO)BUTANOIC ACID |
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Article No. |
04605 |
Grade |
For Biochemistry |
Purity |
99% |
CAS No. |
63-68-3 |
Molecular Formula |
C5H11NO2S |
Molecular Weight |
149.21
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H.S. Code |
2930.4010 |
Shelf Life |
5 Years |
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Specifications |
Appearance |
White powder |
Assay (HClO4 titration) |
Min 99% |
Specific rotation |
+22.5 to + 24 deg |
pH 2.5% solution |
5.5 - 6.5 |
Loss on drying (at 105 deg C) |
Max 0.3% |
Residue on ignition (as SO4) |
Max 0.1% |
Chloride (Cl) |
Max 0.02% |
Sulphate (SO4) |
Max 0.03% |
Iron (Fe)
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Max 0.001% |
Heavy metals (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% |
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Packings |
00025 25 g |
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00100 100 g |
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00500 500 g |
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Revision Date
: 29-Apr-2013 |
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