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Home > Products >API > Histidine HCl H2O Histidine HCl H2O   Identification   Product Name CAS Formula Cat.No Ec No Histidine HCl H2O 5934-29-2 C6H9N3O2.HCl.H2O       Specification     Transmittance: Clear and colorless ≥98.0% Spec. rotation [a]D20------------------- +23.0°～+24.0° Ammonium (NH4)-----------------------≤0.02% Sulfate (SO4)------------------------------≤0.020% Iron (Fe)------------------------------------ ≤10ppm Heavy metals (Pb)---------------------- ≤10ppm Arsenic (As)------------------------------- ≤1ppm Loss on drying----------------------------≤0.20% Residue on ignition---------------------≤0.10% Foreign amino acids--------------------conforms Assay---------------------------------------99.0%～101.0% pH------------------------------------------- 5.6～6.1 Chloride (Cl)----------------------------- 19.12%～19.51% Pyrogen----------------------------------- Non-pyrogenic   Physical Data     Grade   12     Packing   14   15   < Back

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