CN

L-Arginine

Molecular Formula: C6H14N4O2 

Molecular Weight: 174.20 

CAS No: 74-79-3

L-ArginineCP2020EP11USP2023AJI92
Assay≥99.0%98.5-101.0%98.5-101.5%99.0-101.0%
PH10.5-12.0//10.5-12.0
Specific rotation[a]D20+26.9°-+27.9°+25.5°-+28.5°/+26.9°-+27.9°
Specific rotation[a]D25//+26.3°-+27.7°/
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
Arsenic≤1PPM//≤1PPM
Other amino acids≤0.4%/Individual impurities≤0.5%
Total impurities≤2.0%
conform
Ninhydrin-positive substances/Each impurity≤0.2%
Sum of impurities≤ 0.5%
//
Loss on drying≤0.50%≤0.50%≤0.50%≤0.50%
Residue on ignition≤0.10%≤0.10%≤0.30%≤0.10%
Total plate count≤ 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