L-Phenylalanine

Molecular Formula: C9H11NO2 Molecular Weight: 165.19 CAS No: 63-91-2

L-Phenylalanine CP2020 EP11 USP2023 AJI92 FCC11
Assay ≥98.5% 98.5-101.0% 98.5-101.5% 99.0-100.5% 98.5-101.5%
PH 5.4-6.0 / 5.4-6.0 5.4-6.0 5.4-6.0
Specific rotation[a]D20 -33.0°–35.0° -33.0°–35.5° / -33.5°–35.0° -33.2°–35.2°
Specific rotation[a]D25 / / -32.7°–34.7° / -32.7°–34.7°
Transmittance(T430) ≥98.0% / / ≥98.0% /
Appearance of solution / clear & colorless ≤BY6 / / /
Chloride(Cl) ≤0.02% ≤0.02% ≤0.05% ≤0.02% /
Ammonium(NH4) ≤0.02% ≤0.02% / ≤0.02% /
Sulfate(SO4) ≤0.02% ≤0.03% ≤0.03% ≤0.02% /
Iron(Fe) ≤10PPM ≤10PPM ≤30PPM ≤10PPM /
Heavy metals(Pb) ≤10PPM / / ≤10PPM ≤5PPM
Arsenic ≤1PPM / / ≤1PPM /
Other amino acids ≤0.50% / Individual impurities≤0.5%
Total impurities≤2.0%
conform /
Ninhydrin-positive substances / Each impurity≤ 0.2 %
Total impurities≤ 0.5 %
/ / /
Loss on drying ≤0.20% ≤0.50% ≤0.30% ≤0.20% ≤0.20%
Residue on ignition ≤0.10% ≤0.10% ≤0.40% ≤0.10% ≤0.10%
Endotoxin <25EU/g <25EU/g <25EU/g / /
Total plate count ≤ 1000 CFU/g ≤ 1000 CFU/g ≤ 1000 CFU/g ≤ 1000 CFU/g ≤ 1000 CFU/g
Moulds & Yeasts ≤ 100 CFU/g ≤ 100 CFU/g ≤ 100 CFU/g ≤ 100 CFU/g ≤ 100 CFU/g


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