L-Leucine

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L-Leucine

Product Name: L-Leucine 
Molecular Formula: C6H13NO2 
Molecular Weight: 131.17 
CAS No: 61-90-5


Product Specifications


L-Leucine (ferment) CP2015 ( Injection Grade ) EP8 AJI92 USP24 USP38 High Purity
Assay ≥98.5% 98.5-101.0% 99.0-100.5% 98.5-101.5% 98.5-101.5% ≥98.5%
PH 5.5-6.5 / 5.5-6.5 5.5-7.0 5.5-7.0 /
Specific rotation[a]D20 +14.9°-+16.0° +14.5°-+16.5° +14.9°-+16.0° / / +14.9°-+16.0°
Specific rotation[a]D25 / / / +14.9°-+17.3° +14.9°-+17.3° /
Transmittance(T430) ≥98.0% clear & colorless ≤BY6 ≥98.0% / / ≥98.0%
Chloride(Cl) ≤0.02% ≤0.02% ≤0.02% ≤0.05% ≤0.05% ≤0.01%
Ammonium(NH4) ≤0.02% ≤0.02% ≤0.02% / / /
Sulfate(SO4) ≤0.02% ≤0.03% ≤0.02% ≤0.03% ≤0.03% ≤0.02%
Iron(Fe) ≤10PPM ≤10PPM ≤10PPM ≤30PPM ≤30PPM /
Heavy metals(Pb) ≤10PPM ≤10PPM ≤10PPM ≤15PPM ≤15PPM /
Arsenic ≤1PPM / ≤1PPM ≤1.5PPM / /
Other amino acids ≤0.5% / conforms / individual impurities≤0.5% total impurities≤2.0% individual impurities≤0.2% total impurities≤1.0%
Ninhydrin-positive substances / Impurity A at 570nm: ≤0.8%;For each impurity: ≤0.2%;Ammonium at 570nm:≤0.02%;Total impurities: ≤1.0% / /
Loss on drying ≤0.20% ≤0.50% ≤0.20% ≤0.2% ≤0.2% ≤0.20%
Residue on ignition ≤0.10% ≤0.10% ≤0.10% ≤0.4% ≤0.4% /
Organic volatile impurities / / / conforms / /
Endotoxin <25EU/g / / / / /

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