L-Tyrosine

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L-Tyrosine

Product Name: L-Tyrosine
Molecular Formula: C9H11NO3
Molecular Weight: 181.19 
CAS No: 60-18-4

Product Specifications


L-Tyrosine USP38 AJI92 EP8 CP2015 ( Injection Grade )
Assay 98.5-101.5% 99.0-100.5% 99.0-101.0% ≥99.0%
PH / 5.0-6.5 / 5.0-6.5
Specific rotation[a]D20 / -11.3°--12.1° -11.0°--12.3° -11.3°--12.1°
Specific rotation[a]D25 -9.8°--11.2° / / /
Transmittance(T430) / ≥95.0% clear & colorless ≥95.0%
Chloride(Cl) ≤0.04% ≤0.02% ≤0.02% ≤0.02%
Ammonium(NH4) / ≤0.02% ≤0.02% ≤0.02%
Sulfate(SO4) ≤0.04% ≤0.02% ≤0.03% ≤0.02%
Iron(Fe) ≤30PPM ≤10PPM ≤10PPM ≤10PPM
Heavy metals(Pb) ≤15PPM ≤10PPM ≤10PPM ≤10PPM
Arsenic / ≤1PPM / ≤1PPM
Other amino acids individual impurities≤0.5% total impurities≤2.0% conform / ≤0.40%
Ninhydrin-positive substances / / conform /
Loss on drying ≤0.3% ≤0.20% ≤0.50% ≤0.20%
Residue on ignition ≤0.40% ≤0.10% ≤0.10% ≤0.10%
Organic volatile impurities / / / /
Endotoxin / / / <0.25EU/ml


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