L-Methionine 98.5-101.5% (by titrimetric analysis) USP
Supplier: Chem Impex International
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About this item
CAS Number:63-68-3
:
Formula:C₅H₁₁NO₂S
MDL Number:MFCD00063097
:149.21 g/mol
Melting Pt:284 °C (dec.)
Storage Temperature:Ambient
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Specification Test Results
- Heavy Metals:≤15 ppm
- Chloride (Cl⁻):≤0.05%
- Sulphate (SO₄²⁻):≤0.03%
- Iron (Fe):≤30 ppm
- pH:5.6 - 6.1
- Optical Rotation:[a]D20 = +22.4 to +24.7°
- Infrared Spectrum:Conforms to Structure
- Loss on Drying:≤0.3%
- Organic Volatile Impurities:To Meet Requirements
- Individual Impurity:≤0.5%
- Total Impurities:≤2.0%
- Residue on Ignition:≤0.4%
- Assay by Titration:98.5 - 101.5% (Anhydrous Basis)
- Appearance:White to off-white crystalline powder
Specification Test Results
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