L-Tyrosine

Product Name: H-Tyr-OH CAS#: 60-18-4 Synonyms: L-Tyrosine Molecular Formula: C9H11NO3 Molecular Weight: 181.19 Reference standard: AJI92 Appearance:White crystals or crystalline powder Specific rotation[α]20/D(C=5,1mol/L HCL):-11.3 to -12.1° State of solution(Transmittance):Clear and colorless Not less than 95.0% Chloride (Cl):Not more than 0.020% Ammonium (NH4):Not more than 0.02% Sulfate (SO4):Not more than 0.020% Iron (Fe):Not more than 20ppm Heavy metal(Pb):Not more than 10ppm Arsenic(As2O3):Not more than 1ppm Other amino acids:Chromatographically Not detectable Loss on drying:Not more than 0.20% Residue on ignition(sulfated):Not more than 0.10% Assay:98.5 to100.5% pH:5.0 to 6.5

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