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L-Methionine
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CAS NO.: 63-68-3
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Chemical Name
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L-Methionine
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Molecular Formula
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C5H11NO2S
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Molecular Weight
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149.21
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Characteristics
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White crystalline powder
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Packing
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25kg/drum, 25kg/carton
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Quality Standard
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AJI92/USP28/EP5/FCCIV
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Specification
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Specific rotation
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+23.0+24.5
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State of solution
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Clear and colorless
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(Tranamittance)
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98.0% min.
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Chloride(Cl)
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0.02% max.
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Ammonium(NH4)
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0.02% max.
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Sulfate(SO4)
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0.020% max.
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Iron(Fe)
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10PPm max.
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Heavy metals(Pb)
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10PPm max.
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Arsenic(As2O3)
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1PPm max.
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Other amio acids
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Conforms
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Loss on drying
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0.20% max.
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Residue on ignition (Sulfated)
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0.10% max.
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Assay
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99.0-100.5%
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PH
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5.6-6.1
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