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L-Methionine CAS:63-68-3 << BACK
DescriptionWhite Crystals or Crystalline Powder
Identification Conforms
Transmittance 98.0% Min
Specific Rotation [a]D20o +22.4°„to +24.7°„
State of Solution 98.0%Min
Chloride (Cl) 0.020%Max
Ammonium (NH4) 0.02%Max
Sulfate (SO4) 0.020%Max
Iron (Fe) 30ppm Max
Heavy Metals (Pb) 1.5ppm Max
Arsenic (As2O3) 1ppm Max
Other Amino Acids Not Detectable
Loss on Drying 0.30%Max
Residue in Ignition 0.40%Max
Assay 98.5% -101.5%
PH 5.6 to 6.1

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