L-Methionine

Essential aminoacid for human development. Hepatoprotectant, antidote (acetominophen poisoning), urinary acidifier. Synonyms: L-Met-OH, 2-amino-4-(methylthio)butyric acid, (S)-2-Amino-4-(methylthio)butanoic Acid, CAS No: 63-68-3, Molecular Formula: C5H11NO2S, Molecular Weight: 149.21, Appearance: White powder, Purity: >99%, Specific Rotation (C=2, 6N HCl): +22.5° to +24.0°, Identification (IR): Conforms to reference, pH: 5.6-6.1, Loss on Drying: <0.2%, Residue on Ignition: <0.1%, Ammonium: <0.02%, Chloride: <0.02%, Sulfate: <0.02%, Iron: <0.001%, Heavy Metals (Pb): <0.0005%, Transmittance: >95%, Other Amino Acids: <0.50%, Residual Solvent: To pass test, Endotoxin: <1Eu/mg, , Meets or exceeds USP specifications