- Product Detail
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L-Histidine hydrochloride monohydrate AJI97 USP2025 EP11 JP18 Appearance White crystals or crystalline powder / White or almost white, crystalline powder or colourless crystals White crystals or a white crystalline powder ldentification Conform / IR:Conform to CRS Spectrum IR: Conform to CRS Spectrum ldentification(chlorides) / / It gives reaction (a) of chlorides Conform State of solution
(Transmittance)Clear and colorless,
≥98.0%/ / / Specific rotation 
+8.9° ~ +9.5° / + 9.2° ~ + 10.6° (dried substance) +9.2° ~ +10.6° (on the anhydrous basis) Content of chloride 16.66% ~17.08% / / / Sulfate ≤0.020% / ≤300ppm ≤0.028% Ammonium ≤0.02% / ≤0.02% ≤0.02% Iron ≤10ppm / ≤10ppm ≤10ppm Heavy metals ≤10ppm / / ≤10ppm Arsenic ≤1ppm / / / Other amino acids Conform / / / Loss on drying ≤0.20% / 7.0% ~ 10.0% 7.2% ~ 10.0% Residue on ignition ≤0.10% / ≤0.1% ≤0.1% pH 3.5 ~ 4.5 / 3.0 ~ 5.0 3.5 ~ 4.5 Assay 98.5% ~ 101.0% / 98.5% ~ 101.0% (dried substance) 99.0% ~ 101.0% (on the anhydrous basis) Related compounds / / / Conform / Appearance of solution / / Solution S is clear and not more intensely coloured than reference solution BY6 Clear and colorless Ninhydrin-positive
substances/ / Any ninhydrin-positive substance:
each impurity : ≤ 0.2%/ Total: ≤ 0.5%
L-Histidine Hydrochloride Monohydrate
CAS No.: 5934-29-2
Molecular formular: C6H12C1N3O3
Molecular weight: 209.63
Molecular formular: C6H12C1N3O3
Molecular weight: 209.63
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Shijiazhuang Jirong Pharmaceutical Co., Ltd.
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