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L-Histidine Hcl

Product Name: L-Histidine Hcl
Molecular Formula: C6H9N3O2•Hcl•H2O
Molecular Weight: 209.63 
CAS No: 5934-29-2




Product Specifications


L-Histidine Hcl AJI92 EP6
Assay 99.0-101.0 98.5-101.0%
PH 3.5-4.5 3.0-5.0
Specific rotation[a]D20 +8.9°-+9.5° +9.2°-+10.6°
Specific rotation[a]D25 / /
Transmittance(T430) ≥98.0% /
Chloride(Cl) 16.66-17.08% /
Ammonium(NH4) ≤0.02% ≤0.02%
Sulfate(SO4) ≤0.02% ≤0.03%
Iron(Fe) ≤10PPM ≤10PPM
Heavy metals(Pb) ≤10PPM ≤10PPM
Arsenic ≤1PPM /
Other amino acids conform /
Ninhydrin-positive substances / conform
Loss on drying ≤0.20% 7.0-10.0%
Residue on ignition ≤0.10% ≤0.10%

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